National Museum of Nuclear Science & History
Porter worked in the 200 East and West Areas at Hanford during the Manhattan Project.
Hallie Perry was an electrician at Oak Ridge, Tennessee for the Watson-Flagg Engineering Company from 1943 to 1945.
D. J. O'Leary worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Clark Center was a Manhattan Project veteran, who was the general superintendent and later President of the Union Carbide Nuclear Division in Oak Ridge.