National Museum of Nuclear Science & History
R. H. Thompson worked for the H. K. Ferguson Company.
Andrew A. Brown served as a sergeant in the 393rd Bombardment Squadron.
Groom worked at the 300 Area at Hanford during the Manhattan Project.
William Stroud was a staff worker at Los Alamos during the Manhattan Project.
Horace Owen France was an associate biologist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.