National Museum of Nuclear Science & History
D. W. Harrigan worked for the Union Carbide & Carbon Corporation.
Harder worked at the 300 Area at Hanford during the Manhattan Project.
Willard H. Richardson served in the First Ordnance Squadron.
W. H. Reimers Jr. served in the 390th Air Service Group.
Alfred Simon was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.