Byron E. Marsh

Angelo A. Losurdo

George Mahfouz

George Mahfouz joined the Manhattan Project in 1943 when he was offered a job at the Houdaille-Hershey nickel plant in Decatur, Illinois.

Grace Thompson

Grace Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Richard L. Doan

Richard L. Doan was the Director of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.