National Museum of Nuclear Science & History
W. B. England worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Melvin A. Miller was a draftsman at the University of Chicago Met Lab. In 1946, he sketched two famous drawings of Chicago Pile-1 based on the descriptions of scientists who were present when it went critical.
Graham worked at the 300 Area at Hanford during the Manhattan Project.
Matthei worked for Stone and Webster Engineering Corporation.
Arthur J. DiTullio served in the 1027th Air Material Squadron.