Theodore Van Kirk; Hiroshima Atomic BombBiblio.com
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1945ref. 129771945. Hecht Selig. Explaining the Atom signed and inscribed by Theodore Van Kirk framing the atomic bombing of Hiroshima within a longer intellectual history of atomic theory and modern physics. As navigator of the Enola Gay during the August 6 1945 mission Van Kirk contributed directly to the operational execution of nuclear warfare and his inscription frames that event as the culmination of developments beginning with ancient atomism and extending through 20th-century scientific breakthroughs. By referencing figures such as Democritus and Einstein alongside the Manhattan Project the inscription integrates scientific theory with wartime application offering a condensed narrative linking philosophical origins of atomic thought to its realization in military technology. Hecht Selig. Explaining the Atom. New York: Viking Press 1947. 205 pages. Hardcover with dust jacket. Signed and extensively inscribed on the inside title page by Theodore Van Kirk. The inscription reads: "'Page 9; In 400 B.C. Deocritus theoryed the existence of atoms. In 1905 Einstein theorized E=MC squared. In 1943 Oppenheimer heads the Manhattan Project. In 1945 our 'Enola Gay' crew drops the atomic bomb on Hiroshima - Theodore 'Dutch' Van Kirk Navigator - Enola Gay August 6 1945." The text presents a chronological sequence of scientific and historical developments culminating in Van Kirk's own role in the Hiroshima mission. Published in the immediate postwar period Explaining the Atom aimed to make atomic science accessible to a broad audience at a time when nuclear technology had reshaped global politics and warfare. Van Kirk's inscription reflects how participants in the atomic mission interpreted their actions within a broader scientific and historical continuum linking abstract theory to its most consequential application. The juxtaposition of popular scientific exposition with firsthand annotation from a mission participant offers a layered artifact for the study of nuclear history scientific communication and the integration of intellectual and military developments in the mid-20th century. Dust jacket shows moderate wear; volume itself remains clean and well-preserved with strong legible inscription. Overall very good. unknown
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1955ref. 374722World Assembly for Peace Helsinki 1955. Pamphlet. Good Condition. 5 pages. Unstapled pamplet as issued. Size: 18 x 26 cms. Category: Varied Books; Atomic & Nuclear. This item may require more postage than the rates shown for delivery outside the UK. If extra postage is required we will contact you before processing your order and you will be given the details and option to decline the extra cost. World Assembly for Peace unknown
1970ref. 1119006Japan: Hiroshima Prefectural Museum of Arts. Good paper copy ex. cat text by Kenneth Prescott and Bernada B. Shahn and William A. Smiht 182 pp profusely illus. with 27 in color catalogues 170 works and text is in both Japanese and English . Good. Paper. 1970. Hiroshima Prefectural Museum of Arts unknown
1970ref. 1113326Hiroshima Prefectural Museum of Arts. Good paper copy ex. cat. 19th September - 4th October 1970 182 pp 1 pp greetings 1 pp of text by Bernada B. Shahn "Ben in Japan" 2 pp "Ben Shahn - His Life and Arts" 26 4/C illus B/W illus. throughout lists 170 works with media size owner 1 pp text . Good. Paper. 1970. Hiroshima Prefectural Museum of Arts unknown
1946ref. 46889HMSO for Home Office and Air Ministry 1946. 8vo. First Edition with 24 plates on 12; original printed wrappers wire-stitched as issued wrappers lightly browned else a near fine copy. The first publicly available account in the UK. Particular consideration was given to the comparative resilience of UK defence measures. SCARCE. HMSO [for] Home Office and Air Ministry, unknown
ref. 2385143H. Fair. unknown
1957ref. 56750Nagasaki Japan: Kawano Miwa June 1st Showa 32 1957. 8vo. 164 4 pp. Red cloth gilt lettering in Japanese on front cover & spine faint tidemark on upper front & back covers minor shelfwear still VG- copy inscribed by the author on ffep. to Mrs. Hildreth July 5 1959 w/ tipped-in typed note about the work. First edition of this exceedingly scarce personal memoir recounting the author’s experiences and survival of the dropping of the Atomic Bomb on Hiroshima in 1945 at the end of World War II. Kawano b. 1918 was originally a student at Doshisha University Theology Dept. and forced to leave school due to illness was inducted into the Japanese Army in Manchuria and after his discharge studied medicine at Nagasaki Medical University. While working as a medical student in Hiroshima at the time he received burns and severe radiation exposure from the blast. Subsequently he devoted himself to the medical treatment and relief of the injured in Hiroshima and Nagasaki and by 1958 was in the first class of neurosurgery residents at the Oregon School of Medicine now OHSU under Prof. George Austin. He later returned to Nagasaki in 1960 to found the Department of Neurosurgery in the Nagasaki University School of Medicine which had been entirely destroyed in 1945 by the Nagasaki Atomic Bomb drop. The campus had been located less than half a mile from the epicenter of the explosion with the entire facility reduced to ashes by the blast. Kawano devoted his considerable skills to studying the nuclear blast survivors including papers on Whiplash Injury and Headache 1967 study of Post-traumatic Chronic Headache 1965; 1968 changes in the capillaries in the Great Occipital Nerve as well as the increase of Cerebral Aneurysms 1963. No copies located in Worldcat or the National Diet Library; See: Hayashi Ushijima Matsuo Kitagawa Suyama & Nagata The 150th Anniversary of Nagasaki University School of Medicine: Recovery From the Atomic Disaster and Evolution of the Department of Neurosurgery Nagasaki University’s Academic Output Site Congress of Neurological Surgeons 2009. Kawano Miwa, hardcover
1996ref. 32567Hiroshima 1996. 2 vols. roy. 4to. First Edition text in Japanese Main Volume with many hundreds of coloured and monochrome photographs a number folding in the text CD Portfolio with coloured illustrated booklet and CD in oyster case; Main Volume in brown cloth upper board and backstrip lettered in blue CD Portfolio in white boards both volumes housed in publisher's card slip-case a near fine copy. SCARCE. Hiroshima, hardcover
1945ref. 221391945. Editor unknown. Atlanta Journal August 6 1945 records the first American newspaper cycle responding to the atomic bombing of Hiroshima a military and political event that introduced nuclear weapons into warfare and reshaped the final phase of World War II. The issue supports research into wartime journalism anti-Japanese racial language in the American press home-front reception of nuclear warfare and the public announcement of the atomic age; Hiroshima was bombed on August 6 1945 and President Truman's statement described the bomb as having "more power than 20000 tons of T.N.T." Atlanta Journal. Atlanta Georgia. August 6 1945. Final Home Edition. Number of pages and size not stated. Front-page headlines include "Atomic Power Bomb Loosed on Jap Cities" "Death Charge Equals 20000 Tons of TNT" and "Japs Fail to Scratch New Hornet in Terrific 14-month War Cruise." The headlines preserve the immediacy of American reporting on Hiroshima as well as the racialized wartime language used in mainstream newspapers during the Pacific War. General handling wear good overall. A same-day Southern newspaper issue documenting how the first use of atomic warfare entered American public consciousness through mass-circulation news. unknown
1945ref. 193451945. Van Kirk Theodore "Dutch." Signed poster reproducing the navigator's log of the August 6 1945 Enola Gay mission documents the flight that delivered the first atomic bomb used in warfare. Van Kirk served as navigator aboard the B-29 plotting the aircraft's course from North Field on Tinian to Hiroshima and back during a mission that initiated the wartime use of nuclear weapons and transformed military strategy international relations and public understanding of technological destruction. The National Museum of the United States Air Force records that the Enola Gay departed at 2:45 a.m. and released the uranium bomb known as "Little Boy" over Hiroshima later that morning. The poster provides a signed visual chronology for the study of World War II aviation operational navigation the Manhattan Project and the beginning of the nuclear age. Hiroshima Mission Navigator's Log of the Enola Gay. Issuer place and date of printing not identified. Poster reproducing three manuscript pages entirely in Van Kirk's hand; dimensions not supplied. The successive entries trace the mission from takeoff through navigation toward Japan the bombing run and the aircraft's return to base. The log records the 0245 departure the turn onto a 345-degree heading and the climb to 30800 feet with "BOMB AWAY" entered at 0915. These operational notations reduce the mission to headings altitudes times and navigational actions preserving the procedural language by which the crew recorded an event of extraordinary human consequence. Signed at the bottom "Theodore J. 'Dutch' Van Kirk Navigator-Enola Gay Hiroshima Aug. 6 1945." Because the three manuscript pages are photographically or mechanically reproduced the poster should not be described as Van Kirk's original wartime log; only the concluding inscription and signature are represented as original autograph material. The Enola Gay's release of "Little Boy" over Hiroshima marked the first use of a nuclear weapon in war; the bomb detonated approximately 1800 feet above the city. The reproduced entries offer an operational perspective distinct from later narrative accounts showing how the navigator organized the mission through timed observations and course calculations while leaving the destruction below largely outside the log's technical vocabulary. No creasing staining fading tears or edge losses are identified; reproduced manuscript images and Van Kirk's signed inscription remain clear near fine. Signed commemorative record joining the navigator's minute-by-minute flight chronology with direct identification by the last surviving member of the Enola Gay crew. unknown
ref. 4036356305.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
ref. 4036356208.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
1945ref. 125961945. World War IIAtomic Bomb Van Kirk Theodore J. "Dutch". Single blueprint copy inscribed and signed dated "6 Aug 1945." Single blueprint sheet. Annotated blueprint of "Little Boy" the uranium-235 atomic bomb detonated over Hiroshima on August 6 1945 inscribed and explained by Theodore Van Kirk navigator of the B-29 Enola Gay during the first wartime use of a nuclear weapon. Developed under the direction of the Manhattan Project the bomb marked a decisive technological and geopolitical rupture at the close of World War II inaugurating the nuclear age and reshaping global military doctrine. Approximately 70000 people were killed as a direct result of the blast with comparable numbers injured rendering the event one of the most consequential military actions of the twentieth century. Black-and-white blueprint copy approximately 18 x 24 inches illustrating the internal configuration of "Little Boy" employing the gun-type assembly method in which a sub-critical uranium-235 projectile was fired into a hollow uranium-235 target to achieve supercritical mass and initiate a nuclear chain reaction. Van Kirk has added detailed manuscript notations in pencil and ink identifying principal components including the "Neutron Source" "Steel Tamper" "Gunpowder" "Explosion Device" "Highly Sensitive Radio Antennae" "Uranium 235 'Bullet' Fired into Target to Create a Critical Mass" and "Uranium 235 Hollowed out Target." Along the margin in black ink he writes: "This is a blue print of our Hiroshima Atomic bomb 'Little Boy.' It was the only uranium bomb made. The bomb was designed as a gun type bomb with a bullet of U-235 fired into a U-235 target to create a critical mass." Signed below in blue ink: "Theodore J 'Dutch' Van Kirk Navigator - Enola Gay 6 Aug 1945." The design of "Little Boy" was finalized by early 1945 and reflected a conservative engineering approach intended to ensure detonation reliability despite the unprecedented nature of atomic warfare. As a navigational officer on the mission Van Kirk occupied a critical operational role in delivering the weapon to its target and his explanatory annotations reveal how participants later articulated the bomb's mechanics and singular status as the only uranium-based device used in combat. Minor edge wear and light handling marks; blueprint lines sharp and legible; manuscript annotations and signature clear and strong. Overall very good to near fine condition. unknown
1945ref. 125481945. Van Kirk Theodore J. handwritten autograph letter signed 6 August 1945 provides a first-person account by the navigator of the B-29 Enola Gay addressing fears of blast damage and radiation exposure during the Hiroshima atomic bombing mission. As navigator on the aircraft that delivered the first deployed atomic weapon in warfare Van Kirk 1921-2014 occupied a critical operational role requiring precise calculations of speed altitude and distance to ensure both mission success and crew survival. This manuscript directly supports research into World War II strategic bombing the operational realities of the Manhattan Project and contemporary military understanding of radiation hazards at the moment nuclear weapons entered combat. His reflections reveal not only technical planning but also the limited scientific certainty conveyed to flight crews regarding the bomb's destructive and radiological effects. Van Kirk Theodore J. 6 August 1945. Two pages. Approximately 8.5 x 11 inches. In this holograph letter written in question-and-answer format Van Kirk addresses the risks anticipated by the crew: "Did you have any fears about the effects the atomic bomb would have on the Enola Gay and the crew Yes. The fact that the bombs shock waves might destroy or damage the airplane was a major concern." He recalls being advised by a scientist that "we think the airplane will be OK if you're 9 miles away when the bomb explodes" and explains that "it was to get speed and altitude - and therefore distance - that we stripped down our airplanes. We were 12 miles away when the bomb exploded." Regarding radiation he writes: "We were not greatly concerned. We were told that the mushroom shaped cloud was deadly radiation and to stay clear of it. Otherwise no equipment to protect from radiation. No crew members were affected." He signs "Sincerely / Theodore J 'Dutch' Van Kirk / Navigator - Enola Gay / 6 Aug. 1945." The manuscript preserves his phrasing underscoring the mixture of scientific briefing operational adaptation and residual uncertainty that characterized the mission. Composed retrospectively and dated to the day of the bombing the letter reflects how participants later articulated their understanding of radiation at a time when its long-term biological effects were not yet fully grasped by the broader public or as Van Kirk's statement suggests by operational crews. His emphasis on distance calculations and aircraft modification illustrates the intersection of scientific theory and practical military execution in August 1945 when strategic air power entered the nuclear age. The acknowledgment that no protective equipment was provided and that crews relied primarily on avoidance of the mushroom cloud contributes to the evidentiary record of early nuclear risk assessment within the U.S. Army Air Forces. Minor edge wear and light handling creases; ink strong and fully legible; paper clean. Overall very good to near fine condition. A substantive self-authored reflection on blast mechanics and radiation awareness at the inception of atomic warfare. unknown
1945ref. 125771945. Jeppson Morris. Hand-annotated diagram of the "Little Boy" atomic bomb 1945 provides a direct technical interpretation of the weapon used in the bombing of Hiroshima by a participant who bridged both its development and deployment. As weapons officer aboard the Enola Gay and a scientist present at Los Alamos Laboratory Jeppson occupied a rare dual role linking the Manhattan Project's design phase with the operational execution of nuclear warfare. His annotations explain the internal structure and function of the uranium gun-type bomb offering a contemporaneous explanation of how critical mass was achieved and how the weapon was triggered. The document situates technical knowledge of nuclear fission within the lived experience of those responsible for its first use in warfare during World War II. Jeppson Morris. "Little Boy" atomic bomb diagram. United States 1945. One-page black-and-white printed diagram with extensive handwritten annotations and arrows in ink signed at lower margin "Morris Jeppson / Weapon Test Officer / Enola Gay Mission / HIROSHIMA 6 Aug. 1945." The annotations identify and explain key components including "target U235" "projectile 235" and the process by which the bomb "Becomes critical mass with projectile" along with labeled elements such as the "electric detonator" "gun barrel" and "one of 4 radar antennas." The markings function as a technical overlay to the printed schematic clarifying both structure and mechanism from the perspective of the officer responsible for in-flight arming and monitoring of the device. The atomic bombing of Hiroshima marked the first combat use of nuclear weapons and introduced a new phase of warfare defined by unprecedented destructive capacity and strategic implications. Jeppson's role in both the scientific and operational dimensions of the mission positions this document within the immediate transmission of specialized knowledge from laboratory to battlefield. His annotations provide insight into how participants understood and communicated the bomb's function contributing to the historical record of nuclear science military technology and the transformation of warfare at the end of World War II. Light handling wear; diagram remains clear with strong legible annotations and signature. Overall very good. unknown
1945ref. 117821945. Van Kirk Theodore J. "Atomic Bomb Explosion Over Hiroshima" signed statement recounting the August 6 1945 atomic bombing mission documents direct eyewitness testimony from the navigator of the Enola Gay the aircraft that delivered the first atomic bomb used in warfare. The document supports research into World War II air operations atomic warfare and firsthand participant narratives of the Hiroshima mission. As navigator Van Kirk occupied a central operational role in the execution of the flight and his account provides detailed observational evidence of the bombing sequence targeting and immediate visual aftermath. Van Kirk Theodore J. Signed statement titled "Atomic Bomb Explosion Over Hiroshima." 1 page. The typed document includes handwritten corrections and additions in blue ink by Van Kirk including the insertion "Over Hiroshima" in the title. The narrative records precise operational timing and targeting details stating: "Our plane was over Hiroshima at 0815 hours. The bomb fell away from the aircraft at 0915:17 Tinian time. It hit right on target on the Aioi Bridge in Hiroshima." Van Kirk further describes the visual effects immediately following detonation: "The first thing we saw was a big white cloud. It was probably 40000 feet already and around the base of that cloud the entire city of Hiroshima was covered with smoke and dust and you couldn't observe a thing down there." The statement also includes reflective commentary on the mission's intended strategic purpose noting pilot Paul Tibbets' assertion that the weapon could "shorten or end the war." Signed in full "Theodore J 'Dutch' Van Kirk." The document originates from one of the most consequential military actions of the twentieth century the atomic bombing of Hiroshima which marked the introduction of nuclear weapons into warfare and directly preceded Japan's surrender. As a participant-generated account it offers primary evidence of crew understanding mission execution and immediate perception of the bomb's effects complementing official military records and later historical analyses. The inclusion of precise times named targets and observational detail enhances its value for reconstructing the operational chronology of the mission. Light handling wear; otherwise well-preserved with clear text and signature. Overall very good condition. unknown
1976ref. 125641976. Jeppson Morris signed photograph of Hiroshima after the August 6 1945 atomic bombing linking the physical destruction of the city to a member of the Enola Gay mission crew. Jeppson served as assistant weaponeer aboard the B 29 and had responsibility for weapons testing and arming procedures associated with the "Little Boy" atomic bomb; shortly before the aircraft reached Hiroshima he removed its safety devices and inserted the arming plugs. The photograph therefore combines a post bombing view of Hiroshima with the autograph and mission identification of a participant directly involved in preparing the weapon for use. Black and white photograph 11 x 8 1/2 inches showing the devastated Hiroshima landscape after the atomic bombing. Few structures remain visible beyond foundations and other remnants while burned tree trunks stand amid the cleared terrain. Jeppson has signed and inscribed the image "Morris Jeppson - Weapons Test Officer - Enola Gay Mission- Hiroshima-6 Aug 1945" explicitly identifying his role aircraft target and mission date. The Enola Gay dropped the first atomic weapon used in combat over Hiroshima on August 6 1945. Jeppson's inscription gives the image direct association with the mission and preserves his own description of his position as "Weapons Test Officer" while contemporary institutional histories also identify him as assistant weaponeer to Captain William S. Parsons. The visible destruction provides a stark record of the consequences of the bombing while Jeppson's signed identification connects that aftermath to the personnel responsible for carrying and arming the weapon. Condition not stated. unknown
1945ref. 129721945. Field Marshall III publisher. The Chicago Sun August 7 1945 documents the first full day of American press coverage following the atomic bombing of Hiroshima and the sudden public disclosure of the secret wartime program that produced the weapon. The United States dropped the uranium bomb "Little Boy" on Hiroshima on August 6 and President Harry S. Truman announced its use the same day disclosing the existence of the atomic bomb and declaring that the release of atomic energy opened a new era in humanity's understanding of natural forces. The issue is particularly significant for showing how a mass-circulation American newspaper initially presented the bomb through three interconnected narratives: the destructive results of atomic science the formerly secret industrial infrastructure of the Manhattan Project and expectations for the peacetime uses of atomic power. It provides primary-source evidence for the study of Hiroshima World War II journalism the public revelation of the Manhattan Project nuclear technology and the opening of the atomic age. The Chicago Sun. Chicago: The Chicago Sun Tuesday August 7 1945. 22 pages printed recto and verso. Complete issue. The front page contains extensive atomic-bomb coverage including "Story of Our Secret Weapon"; "Scientists Tell Of Watching First Blast. Steel Tower is Vaporized; Cloud Rises 8 Miles"; and "Truman Visions New Era Powered by Atomic Force." A large photograph depicts an atomic-production facility at the Clinton Engineer Works at Oak Ridge Tennessee giving readers a first visual introduction to part of the immense industrial system that had operated under wartime secrecy. The Clinton Engineer Works served as the Manhattan Project's administrative headquarters and contained the K-25 S-50 and Y-12 facilities used in uranium-isotope separation; enriched uranium produced at Oak Ridge contributed directly to the Hiroshima weapon. The juxtaposition of the first atomic test industrial production Hiroshima and Truman's predictions for atomic energy illustrates how quickly American newspapers began constructing a public explanation for technology that had remained secret throughout most of the war. The August 7 date gives the issue considerable documentary immediacy: American readers were encountering the scale scientific origins industrial production and possible future applications of atomic energy almost simultaneously with learning of its use against a populated city. Truman's August 6 statement itself moved rapidly between military destruction and predictions that atomic energy might eventually supplement coal oil and hydroelectric power a dual framing closely echoed by the headlines preserved here. Oak Ridge's appearance on the front page is equally significant because the sprawling Tennessee installation had been created under extraordinary secrecy beginning in 1942 and encompassed several parallel processes for uranium enrichment. Light age toning and spotting with slight wear to edges; otherwise complete and well preserved. Very good. An unusually immediate newspaper record of the transition from a secret wartime weapons program to a publicly recognized atomic age published one day after Hiroshima and preserving the first explanations offered to American readers of the bomb its production and its anticipated consequences. unknown
1945ref. 107541945. Van Kirk Theodore J. "Dutch." Signed photograph of the Enola Gay documenting the B 29 Superfortress used in the first atomic bombing in warfare and bearing an inscription by its navigator. Van Kirk served as navigator aboard the B 29 Enola Gay during the August 6 1945 bombing of Hiroshima guiding the aircraft during its flight from Tinian to Japan and its return. The image supports research into World War II aviation the Manhattan Project atomic warfare and the commemorative culture through which mission participants later identified and interpreted the aircraft. The National WWII Museum confirms Van Kirk's position as navigator aboard the Enola Gay. Color photographic image of the Enola Gay undated. 6 by 12 inches. The aircraft is the primary subject although its viewpoint setting markings and whether it is shown in flight or on the ground are not specified in the supplied description. Van Kirk has inscribed the photograph in blue ink: "To recipient - best wishes and thanks - Dutch Van Kirk Navigator - Enola Gay Gang 6 Aug. 1945." The personalized salutation and informal phrase "Enola Gay Gang" identify the photograph as a later commemorative presentation rather than a contemporaneously inscribed wartime image. On August 6 1945 the Enola Gay departed Tinian carrying the uranium bomb known as "Little Boy" and released it over Hiroshima initiating the use of nuclear weapons in war. The aircraft and its crew subsequently became central to competing historical interpretations of military necessity civilian destruction technological change and the beginning of the atomic age. Van Kirk's full mission inscription connects the pictured aircraft directly to the navigator responsible for plotting its course and records the date through the language of a surviving participant. Blue-ink inscription remains bold and legible; no defects are reported. Near fine. A personally inscribed aircraft portrait joining the material history of the Enola Gay with the later commemoration of the Hiroshima mission. unknown
1945ref. 125531945. Van Kirk Theodore J. handwritten autograph letter signed 6 August 1945 provides a first-person account by the navigator of the B-29 Enola Gay addressing the operational risks of deploying the first atomic bomb and the crew's reaction to the magnitude of its detonation over Hiroshima. As navigator on the aircraft that carried out the 6 August 1945 mission Van Kirk 1921-2014 bore responsibility for the precise calculations necessary to deliver an unprecedented weapon under combat conditions. This manuscript supports research into World War II strategic air warfare the operational uncertainties surrounding the Manhattan Project's first use in combat and the technological anxieties inherent in deploying a weapon whose destructive capacity exceeded prior experience. His reflections illuminate both mechanical vulnerability and the psychological shock experienced by participants at the dawn of nuclear warfare. Van Kirk Theodore J. 6 August 1945. Two pages. Approximately 8.5 x 11 inches. In this holograph letter written in question-and-answer format Van Kirk considers the potential for catastrophic malfunction: "Could something have gone wrong during the flight or when the bomb was launched Of course - all kinds of things. We all know what can go wrong with airplanes even during pastime flying. The bomb could 'hang up' in the bomb bay and not launch cleanly. Therefore it would not fall as predicted and if not could cause damage or destroy the plane." Reflecting on the detonation itself he acknowledges: "Were the crew members surprised at the extent of the explosion Yes. The explosion was much greater than the test in New Mexico and much bigger than any of us could realize." He signs "Theodore J Van Kirk / Navigator - Enola Gay / 6 Aug. 1945." The manuscript preserves his language emphasizing both the technical fragility of the mission and the unforeseen scale of the weapon's destructive force compared to the Trinity test. Although composed retrospectively and dated to the day of the mission the letter contributes to the documentary record of how participants later described the uncertainties surrounding the first atomic combat deployment. Van Kirk's acknowledgment that the explosion exceeded expectations underscores the limited empirical frame of reference available even to trained officers briefed on the weapon's development. His discussion of bomb bay malfunction and aircraft vulnerability highlights the intersection of conventional aviation risk and revolutionary weapons technology in August 1945. Minor edge wear and light handling creases; ink strong and fully legible; paper clean. Overall very good to near fine condition. A substantive self-authored reflection on mechanical peril and the unprecedented scale of the first atomic explosion in warfare. unknown
1945ref. 143931945. Jeppson Morris R. Autograph letter recounting his role in the Hiroshima atomic bombing mission written by the weapons test officer aboard the B 29 Enola Gay the aircraft that delivered the first atomic weapon used in warfare on 6 August 1945. Morris Jeppson served as the electronic officer responsible for the bomb's fuzing system and for arming the uranium bomb known as "Little Boy" shortly before it was released over Hiroshima. His recollections provide firsthand testimony concerning the selection of the mission crew the operational procedures followed aboard the aircraft and the technical responsibilities associated with the deployment of the atomic weapon during the closing days of World War II. Jeppson Morris R. Autograph Letter Signed. Three pages written on yellow lined paper composed as responses to a series of questions concerning the Hiroshima mission. The manuscript appears to be a draft with numerous corrections and annotations with both the questions and answers written in Jeppson's hand. Addressing how he was selected to fly on the mission Jeppson recounts: "The day before the mission there were 6 of us who had participated in the development and testing of the electronic fuzing system for atomic weapons. George called our group of 6 together and said it was decided that whether Jeppson or Lt. Leon Smith would fly the first mission scheduled for 6 August. He said a coin toss will decide. He tossed I got the assignment." When asked about his role aboard the aircraft Jeppson describes assisting Captain William Parsons in preparing the weapon after takeoff and monitoring the bomb's electronic fuzing system during the flight. He explains that shortly before the bombing run he entered the bomb bay and "replaced an electrical component plug in the bomb with a red coded plug that armed the bomb so that it would self detonate when it reached an elevation above ground of about 1800 feet." The letter concludes with reflections on the mission's perceived outcome noting that the detonation confirmed the operational success of the weapon's design. The Hiroshima bombing represented the first combat use of nuclear weapons and marked a decisive technological and political turning point at the end of World War II. Personnel involved in the Manhattan Project and the 509th Composite Group later became central witnesses to the development and deployment of atomic weapons. Jeppson's manuscript responses offer detailed technical and personal recollections concerning the operational procedures aboard the Enola Gay including the late decision to arm the weapon in flight and the responsibilities assigned to the crew members who developed the bomb's electronic fuzing system. The document provides insight into the internal mechanics of the Hiroshima mission as remembered by the officer who physically armed the weapon shortly before its release. Signed "Morris R. Jeppson" in a different pen. Light handling wear; overall excellent condition. A detailed firsthand account of the technical preparation and execution of the first atomic bombing mission. unknown
