National Museum of Nuclear Science & History
C. W. McCollum worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hays worked in the United States Engineer District Office
General Lyle Edward “Skip” Seeman was a United States Army Corps of Engineers Officer. He was also a Manhattan Engineering District Special Assistant to General Groves at Los Alamos On May 3, 1945 Col Seeman was appointed by General Leslie Groves to be his Corps of Engineers liaison at Los Alamos.
