Walter D. Higgins

A.E. Radford

Clyde R. Emery

Clyde R. Emery worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Ernest C. Lawrence

Ernest C. Lawrence was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Roger M. Smith

Roger M. Smith served in the First Ordnance Squadron.