National Museum of Nuclear Science & History
McCoig worked in the 100 F Area at Hanford during the Manhattan Project.
O. G. Bolin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John was a staff member at Los Alamos during the Manhattan Project.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.