Paul C. MacGregor

Don F. Mester

Don Mester worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Norma K. Hipple

Norma K. Hipple was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Everett A. Collins

Paul B. Petretzky

Paul Petretzky worked for the Tennessee Eastman Corporation at the Y-12 Plant.