National Museum of Nuclear Science & History
Cowan worked at the 100-B Area at Hanford during the Manhattan Project.
H. O. Norman worked for the Edenfield Electric Company.
Angeline Sniegoski was a staff worker at Los Alamos during the Manhattan Project.
Henry Wigen worked for the United States Engineer District Office.
E. W. McConnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.