National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
T. K. Rothermund worked for the J.A. Jones Construction Company.
H. B. Gilbert worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John E. Cantlon served as a 2nd lieutenant in the 393rd Bombardment Squadron. He participated in the mission to Nagasaki as the co-pilot of the Big Stink, though he was regularly assigned to the Necessary Evil.
