National Museum of Nuclear Science & History
J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.
Paris Howard was a member of the Special Engineering Detachment (SED) assigned to Los Alamos from May 1945 to April 1946.
Connor worked at the 200 West Area at Hanford during the Manhattan Project.
G. M. Fleetwood worked for the Fercleve Corporation.