National Museum of Nuclear Science & History
Austin Johnston worked for the United States Engineer District Office.
J. A. Drake worked for the J.A. Jones Construction Company.
Joe W. Howland was a medical officer in charge of special problems in the US Army, stationed in Oak Ridge, Tennessee and Rochester, New York during the Manhattan Project.
Blanche J. Lawrence was an African-American research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
