National Museum of Nuclear Science & History
L. H. Roberts worked for the H. K. Ferguson Company.
John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.
Madsen worked in the 100 D Area at Hanford during the Manhattan Project.
V. Brower served in the 509th Headquarters and Base Services Squadron.
Ralph Gates (1925-2018) was a chemical and electrical engineer who was recruited to the Manhattan Project as a part of the Special Engineer Detachment in early 1945.