National Museum of Nuclear Science & History
R. A. Coster worked for the Union Carbide & Carbon Corporation.
Paul P. Groves served in the 393rd Bombardment Squadron.
T. U. Foster worked for the H. K. Ferguson Company.
Helen J. Arson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Apple worked at the 200 West Area at Hanford during the Manhattan Project.