F. B. Kramer

George R. Carlson

George R. Carlson was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Van Reid

Daniel J. Keefe

Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Henry A. Brzostowski

Henry Brzostowski worked for the Roane-Anderson Company.