Nathan Kaplan

T. L. Harrigan

T. L. Harrigan worked for the Tennessee Eastman Corporation at the Y-12 Plant.

C.R. Jones

John H. Smith

John Smith was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.

H.A. Fettinger

H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.