Howard C. Worley

Margaret Strombeck

Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Harvey Matthioson

Harvey Matthioson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Harry D. Burton

Burton worked on the United States Engineer District Office.

J. A. Swarthout