National Museum of Nuclear Science & History
L. F. Preston worked for the United States Engineer District Office.
Sappenfield worked at the 300 Area at Hanford during the Manhattan Project.
William J. Cotter served as a staff sergeant in the 393rd Bombardment Squadron. He was the radar operator regularly assigned to the B-29 Strange Cargo.
Davis worked in the United States Engineer Office.
Cleo Wangsness was a staff worker at Los Alamos during the Manhattan Project.
