National Museum of Nuclear Science & History
George Fisher worked for the Roane-Anderson Company.
Alvin Graves (1909-1965) was an American physicist. Graves was invited to join the University of Chicago Metallurgical Laboratory and in 1942 he accepted the position and became a member of the Manhattan Project.
M. E. Gregson worked for the Roane-Anderson Company.
Hollis worked for Stone and Webster Engineering Corporation.