National Museum of Nuclear Science & History
Ruth Boe worked at the Met Lab in Chicago from November 1943 through June 1945. She was in Farrington Daniels’ division, in the graphite research section.
Frederick E. Brown served as a sergeant in the 393rd Bombardment Squadron. He was the assistant engineer/scanner regularly assigned to the B-29 Some Punkins.
Sappenfield worked at the 300 Area at Hanford during the Manhattan Project.
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.