National Museum of Nuclear Science & History
Parr worked in the 200 East and 100 D Areas at Hanford during the Manhattan Project.
Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.
Hoenie worked at the 200 West Area at Hanford during the Manhattan Project.
Milton Kahn was a Chemistry graduate student, at the University of California. Kahn focused on Radiochemistry throughout his career.
Brewer worked at the 200 East Area at Hanford during the Manhattan Project.