National Museum of Nuclear Science & History
McCoig worked in the 100 F Area at Hanford during the Manhattan Project.
Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John J. Kroes served in the 1st Ordnance Squadron.
Cardea Hubbard was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. C. Martin worked for the Roane-Anderson Company.