National Museum of Nuclear Science & History
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.
W. J. Karraker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Edna K. Marks was a junior biologist and technician in the Health Division at the University of Chicago Met Lab.
Irvin Mastin worked for the J.A. Jones Construction Company.
