National Museum of Nuclear Science & History
H. G. Arnett worked for the Roane-Anderson Company.
B. P. Gump worked for the Roane-Anderson Company.
Col. Oliver Haywood was on General Leslie Groves‘ staff from May to December 1946. Haywood had a long military career after graduating from West Point in 1936 and receiving both a M.
J. J. Mulligan served in the 390th Air Service Group.
George L. Brabenec was a master sergeant in the 393rd Bombardment Squadron. He served as the flight engineer of the Necessary Evil, but flew in the Big Stink during the Nagasaki mission.
