National Museum of Nuclear Science & History
Raymond Frank was a metallurgist at the University of Chicago and stayed with the Met Lab after graduating from the university.
Mildred McNamara was a secretary in Oak Ridge, Tennessee from 1942 to 1946. Mildred Catherine Wilton was born in Somerville, Massachusetts in August 1895.
Millard Sloan was a chemical operator at the Y-12 Plant in Oak Ridge, Tennessee from 19445 to 1947. Sloan was a Tennessee native who served in India with the 12th Air Cargo Re-supply Squadron of the US Army before working at Oak Ridge.