National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
Bruce Edward Adams was a chemical engineer and member of the Manhattan Project. He helped in the development of the atomic bomb.
Benjamin Bederson, a New York native, was selected to serve in the Special Engineering Detachment during the Manhattan Project.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. M. Brobeck worked for the Tennessee Eastman Corporation at the Y-12 Plant.