National Museum of Nuclear Science & History
J. C. Tippins worked for the J.A. Jones Construction Company.
J. H. Russell worked for the United States Engineer District Office.
Barrett Castle worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bob Emigh was in the Navy and worked with Deak Parsons on telemetry for the bombs. He was assigned as the science officer for the planned third bomb.
