National Museum of Nuclear Science & History
Messick worked in the 200 West Area at Hanford during the Manhattan Project.
J. M. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project.
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.
R.C. Houlton was the Personnel Director at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.