National Museum of Nuclear Science & History
Parr worked in the 200 East and 100 D Areas at Hanford during the Manhattan Project.
Butler worked at the 300 Area at Hanford during the Manhattan Project.
H. A. McWade worked for the Edenfield Electric Company.
Earl K. Hyde was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
