National Museum of Nuclear Science & History
LeRoy Shackelton served in the First Ordnance Squadron.
Lawrence Litz was a young physicist when he began working on radioactivity at the Metallurgical Laboratory at the University of Chicago.
H. S. McCright served in the 390th Air Service Group.
John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.