National Museum of Nuclear Science & History
E. A. McCaskill worked for the United States Engineer District Office.
Dale H. Durey served in the 603rd Air Engineering Squadron.
Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project.
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.
Keeley worked for Stone and Webster Engineering Corporation.