National Museum of Nuclear Science & History
John Mendl was a member of the 1st Ordnance Squadron in the 509th Composite Group stationed on Tinian Island in the Pacific.
William Bultman Holton was Chairman of the Chemistry Department at American University in 1938.
John Brady served as a Machinist at the Hanford Nuclear Reservation from 1943 to 1960. He was proud of the work he did at Hanford, though it was always a mystery to his children because Brady wouldn't talk about his job.
Beltzner worked at the 100-D Area at Hanford during the Manhattan Project.