National Museum of Nuclear Science & History
R. W. Engels worked at the 300 Area at Hanford during the Manhattan Project.
Hood worked at the 200 West Area at Hanford during the Manhattan Project.
James B. Snodgrass was a member of the Mounted Military Police working on site security at Los Alamos and the Trinity test site.
Carpenter worked at the 200 East Area at Hanford during the Manhattan Project.