R. M. Hetzel

A. G. Lambert

Lambert worked in the 100 B and D Areas at Hanford during the Manhattan Project.

Norman H. Layton

E. H. Mantz

E. H. Mantz worked for Hanley & Company.

Frank E. Keene

Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.