National Museum of Nuclear Science & History
Otto Frisch (1904-1979) was an Austrian-born physicist. Frisch joined the Manhattan Project in 1943, but his most important contribution to the project came in 1940 in England.
R. B. Rush served in the 390th Air Service Group.
Ben Benjamin was a sergeant in the Special Engineer Detachment during the Manhattan Project. He had previously worked in industry making lenses and prisms, and was assigned to the Optics Group to help with photographing the Trinity Test.