Ernest W. Frey

Arvid P. Johnson

F. J. De Franco

De Franco worked in the United States Engineer District Office.

Roger Hultgren

Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.

C.M. Nally

Nally worked at the 300 Area at Hanford during the Manhattan Project.