National Museum of Nuclear Science & History
Marion Mandel was a laboratory technician in the Health Division at the University of Chicago Met Lab.
Lt. Col. Thomas John Classen served as a lieutenant colonel in the 393rd Bombardment Squadron. By 1943, Tom was the captain of the 72nd Squadron.
Elsie Harrington was a civilian RO Operator at Oak Ridge, Tennessee from October 1943 to February 1947.
