National Museum of Nuclear Science & History
Philip C. Leahy was a Second Lieutenant for the U.S. Army Corps of Engineers who began his work for the Manhattan Project at the Metallurgical Laboratory at the University of Chicago, Illinois.
Donald O. Cole served as a corporal in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
R. S. Livingston worked for the Tennessee Eastman Corporation at the Y-12 Plant.