National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
J. C. Gleason worked for the Tennessee Eastman Corporation at the Y-12 Plant.
E. C. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. M. Kolodkin worked for the Roane-Anderson Company.
