L.A. Johnston

Byron B. Shull

K. A. O’Connor

K. A. O'Connor worked for the Roane-Anderson Company.

Jewel Corvin

Jewel Corvin worked for the J.A. Jones Construction Company.

Edward J. Fredrick

Edward J. Fredrick was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.