Everett A. Collins

H. J. Williams

Williams worked at the 100-D Area at Hanford during the Manhattan Project. 

Sam H. Barnett

T. C. Evans

Evans worked at the 300 Area at Hanford during the Manhattan Project.

Robert C. Hirt

Robert C. Hirt was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.