National Museum of Nuclear Science & History
R. Althoff worked for the J.A. Jones Construction Company.
William St. Clair worked for the United States Engineer District Office.
H. M. Kolodkin worked for the Roane-Anderson Company.
Richard V. Vertz served in the First Ordnance Squadron.
Sineath Jr. worked at the 200 East Area at Hanford during the Manhattan Project.