National Museum of Nuclear Science & History
H.W. was a consultant at Metallurgical Laboratory in Chicago during the Manhattan Project.
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.
M. B. Coley worked for the J.A. Jones Construction Company.
Walter F. McCaleb served in the 393rd Bombardment Squadron.
Harold W. Cottrill served in the 1027th Air Material Squadron.