Francis Birch, American Engineer Commander (Albert Francis Birch, 1903-1992) marks the atomic bomb “Little Boy” with the inscription “L11”.
To the right of Francis Birch is Norman Foster Ramsey, Jr., 1915-2011.
Both US Army officers were part of the Atomic Weapons Development Group (Manhattan Project).
Francis Birch photo source: US National Archives.
Location: Tinian, Mariana Islands, Pacific Ocean
Photo time: August 1945