National Museum of Nuclear Science & History
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. D. Sheahan worked for the United States Engineer District Office.
Frederick H. Streaker served in the First Ordnance Squadron.
Richard “Dick” H. Nelson served as a private first class in the 509th Composite Group. He was the radio operator on the Enola Gay during its mission to Hiroshima.