National Museum of Nuclear Science & History
Charles Mayette worked for Hanley & Company.
Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Flannigan worked in the United States Engineer District Office.
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.
Harry D. Smith served in the 393rd Bombardment Squadron.
