James J. Wainscott

Carl H. Dunnebecke Jr.

Dunnebecke worked in the United States Engineer District Office.

Louis J. Juliano

Helena Calloway

Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Roland H. Mertes

Roland Mertes worked for the Kellex Corporation at the K-25 Plant.