National Museum of Nuclear Science & History
J. R. O'Neill worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gale Young was a research associate in theoretical studies at the University of Chicago Met Lab. Before joining the Manhattan Project in 1942, Young taught mathematics and physics at Olivet College.
Cole worked for Stone and Webster Engineering Corporation.
Milam worked in the 200 West Area at Hanford during the Manhattan Project.