National Museum of Nuclear Science & History
Hollis worked for Stone and Webster Engineering Corporation.
Clifford Nilsson served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
H. W. Caldwell worked for the Edenfield Electric Company.
Lyman Brenneman was a member of the Special Engineer Detachment at Oak Ridge and was assigned to the K-25 Power Plant.
N. D. Barker worked for the Tennessee Eastman Corporation at the Y-12 Plant.