National Museum of Nuclear Science & History
John Ruhoff worked for the United States Engineer District Office.
Hershey worked at the 300 Area at Hanford during the Manhattan Project.
Ruth H. Anderson was a staff member at Los Alamos during the Manhattan Project. Her husband, Ralph Larsen, worked at Los Alamos as a machinist.
Rosalin Small was a staff worker at Los Alamos during the Manhattan Project.
