National Museum of Nuclear Science & History
Day worked for Stone and Webster Engineering Corporation.
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.
Chalgren worked at the 200 West Area at Hanford during the Manhattan Project.
Hauser worked in the United States Engineer District Office.
Ralph E. Telford worked at the Metallurgical Laboratory in Chicago during the Manhattan Project.
