National Museum of Nuclear Science & History
P. M. Putnam worked for the J.A. Jones Construction Company.
Glen Montgomery was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Francis Birch (1903-1992) was an American geophysicist. In 1942, Birch worked at the MIT Radiation Lab, which was tasked with radar development.
John Dillon worked for the Tennessee Eastman Corporation at the Y-12 Plant.