National Museum of Nuclear Science & History
H. J. Mack worked for the Edenfield Electric Company.
Kreitzberger worked in the 200 East Area at Hanford during the Manhattan Project.
Spofford G. English was an American chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) and Oak Ridge during the Manhattan Project.
Dale M. Brown served in the 320th Troop Carrier Squadron.
Gaffney worked in the United States Engineer District Office.