National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Bumpus worked at the 100-B Area at Hanford during the Manhattan Project.
W. C. Brandau worked for the William A. Pope Company.
Walter Goodman joined the Special Engineer Detachment at Los Alamos in 1943. Goodman worked as an electrical engineer on the implosion bomb with Manhattan Project scientists Luis Alvarez and Harold Agnew.