National Museum of Nuclear Science & History
Mollie Sprio was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Robert van Gemert worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.
Ned McWherter served in the 1st Ordnance Squadron.
Baldwin Sawyer is an American metallurgist. After graduating from Yale with a B.S. in Physics in 1943, Sawyer joined the Manhattan Project at the University of Chicago.