National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Litchfield worked in the 100 F Area at Hanford during the Manhattan Project.
Raymond E. Allen served as a sergeant in the 393rd Bombardment Squadron. He was the commander regularly assigned first to Luke the Spook and later to Big Stink.
Coogler worked at the Oak Ridge project site during the Manhattan Project as a member of the U.S. Army Corps of Engineers.