National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
William Rubinson was a chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
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.
Arnold Tiller worked for the Tennessee Eastman Corporation at the Y-12 Plant.
