National Museum of Nuclear Science & History
Philip C. Leahy was a Second Lieutenant for the U.S. Army Corps of Engineers who began his work for the Manhattan Project at the Metallurgical Laboratory at the University of Chicago, Illinois.
Howard Harmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Shirley Lewallen was a typist for the Manhattan Project recruitment office in Hanford, Washington between 1942 and 1944.
