National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Calderwood worked at the 200 East Area at Hanford during the Manhattan Project.
A. J. O'Donnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jacob Y. Bontekoe served as 2nd lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.