National Museum of Nuclear Science & History
Hartman worked for Stone and Webster Engineering Corporation.
Brickhouse worked at Los Alamos during the Manhattan Project.
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.
Roos worked at the 300 Area and the 200 West Area at Hanford during the Manhattan Project.