National Museum of Nuclear Science & History
Ruby Palen worked for the United States Engineer District Office.
Dr. Joseph Katz was a chemist at Argonne National Laboratory at the Metallurgical Lab in Chicago. Katz was a part of a team that studied ways to make the diffusion of U-235 to U-238.
E. B. Dutton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ralph D. Fry served in the 603rd Air Engineering Squadron.
Richard Tolman (1881-1948) was an American physicist and chemist. Starting in 1940, Tolman served as Vice-Chairman of the National Defense Research Committee (NDRC) and was also the Chairman of the Armor and Ordnance Division of the NDRC.