National Museum of Nuclear Science & History
M. A. Ruth worked for the United States Engineer District Office.
Joseph Vollmer served in the army at Los Alamos during the Manhattan Project.
Ernest Mekanas was a member of the Provisional Engineering Detachment at Los Alamos. Mekanas was in Los Alamos from 1943 to 1945, working primarily at the post office.
W. E. S. Trenchard worked for the J.A. Jones Construction Company.