National Museum of Nuclear Science & History
A. J. Cannon worked for the Union Carbide & Carbon Corporation.
Emma Tolmach was a technician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Larson worked in the 200 West Area at Hanford during the Manhattan Project.