National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
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.
John V. Williams served in the 320th Troop Carrier Squadron.
Bruce G. Corrigan served in the 1st Ordnance Squadron.
Frederic Showalter served in the First Ordnance Squadron.