National Museum of Nuclear Science & History
Leo James Rainwater was an American physicist and winner of the 1975 Nobel Prize in Physics. As a graduate student at Columbia University, Rainwater assisted the Manhattan Project through research in the Substitute Alloy Materials (SAM) Lab.
Edwin C. Hudgens served in the 1st Ordnance Squadron.
Vanstrum began working on the Manhattan Project soon after receiving his engineering degree from the University of Minnesota.