Lawrence J. Mahoney

Ralph Nobles

Ralph Nobles was one of three brothers to work on the Manhattan Project. He and his brother William worked at Los Alamos, while brother Robert was at the University of Chicago’s Metallurgical Laboratory.

William S. Biggers

William S. Biggers worked as a chemical engineer during the Manhattan Project. Biggers worked at the the Houdaille-Hershey Plant in Decatur, Illinois from April 1944 to December 1946.

C. L. McCallum

C. L. McCallum worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Rudolph O. Velasco