Morris Jeppson Autographs
Morris Richard Jeppson (June 23, 1922 – March 30, 2010) was a Second Lieutenant in the United States Army Air Forces during World War II. He served as assistant weaponeer on the Enola Gay, which dropped the first atomic bomb on the city of Hiroshima, Japan on August 6, 1945.
Jeppson was born in Logan, Utah, and studied physics at the University of Nevada, Reno. After enlisting in the United States Army Air Corps in 1942 at the age of 19 and basic training in Florida, he received electrical engineering training at Yale University, Harvard University and MIT. He then worked on bomb firing mechanisms with Los Alamos scientists at Wendover Air Force Base, Utah.
Second Lieutenant Jeppson, along with then Captain William "Deak" Parsons of the U.S. Navy were responsible for arming the atomic bomb "Little Boy" on the Boeing B-29 Superfortress bomber during the flight from Tinian to Japan. The bomb was protected from premature in-flight detonation by inserting three safety plugs into the electrical connection from its internal battery to the firing mechanism. This was designed to prevent a firing voltage from reaching the mechanism. Each plug was about the size and shape of a car cigarette lighter (approximately three inches in length), with a green cap for the safety plug and a red cap for the arming plug. Jeppson's role was to climb into the bomb bay and remove the three green safety plugs from the bomb and to replace them with the three red plugs just before the aircraft climbed to high altitude close the target area, a job that later caused controversy. With the actions of switching these plugs, Jeppson became the last person to handle the “Little Boy” bomb. He clarified this in the BBC documentary Hiroshima.
Read more about Morris Jeppson on Wikipedia
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Traded items with a signature of Morris Jeppson
The most expensive item with a signature of Morris Jeppson (Enola Gay Little Boy Bomb Model Signed Paul Tibbets Dutch VanKirk Morris Jeppson) was sold in November 2023 for $6,300.00 while the cheapest item (Morris Jeppson signed picture/ww2 weekend) found a new owner for $0.99 in July 2009. The month with the most items sold (11) was June 2009 with an average selling price of $9.99 for an autographed item of Morris Jeppson. Sold items reached their highest average selling price in November 2023 with $6,300.00 and the month that saw the lowest prices with $1.29 was July 2023. In average, an autographed item from Morris Jeppson is worth $23.00.
Most recently, these items with a signature of Morris Jeppson were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
![]() | ENOLA GAY CREW (MORRIS JEPPSON) - AUTOGRAPHED SIGNED PHOTOGRAPH | $226.99 | ![]() |
![]() | Lt Morris Jeppson Signed Photo of the Atomic Bomb August 9, 1945 . 5” x 7” Photo | $125.00 | ![]() |
![]() | Morris Jeppson Atomic Bomb / World War II Military History Morris R Signed | $1,250.00 | ![]() |
![]() | MORRIS JEPPSON WEAPON TEST OFFICER ENOLA GAY AUG 1945 SIGNED AUTO B&W PHOTO JSA | $149.99 | ![]() |
![]() | Morris Jeppson WWII Enola Gay Weaponeer 1st Atomic Bomb Signed Autograph FDC | $39.99 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: Morris Jeppson - Signed Bombing Statement SCARCE | $51.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: UNIQUE Enola Gay Morris Jeppson signed 1945 Currency | $75.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: UNIQUE Enola Gay Morris Jeppson signed 1945 Currency | $75.85 | ![]() |
![]() | WWII ATOMIC BOMB MISSIONS: UNIQUE Enola Gay Morris Jeppson signed 1945 Currency | $75.85 | ![]() |







