National Museum of Nuclear Science & History
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dunnigan worked at the 300 Area at Hanford during the Manhattan Project.
Arthur C. Stein served in the 320th Troop Carrier Squadron.
John D. Robey served in the radar section of the 393rd Bombardment Squadron.
H. de B. Forbes worked for the J.A. Jones Construction Company.