Frank S. Brown

Hazel Gensen

W. A. Plumb

W. A. Plumb worked for the United States Engineer District Office.

C. S. Peal

C. S. Peal worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Harvey B. Lemon

Harvey B. Lemon (1885-1965) was a consultant to the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.