Nellie Kate Williams

E. Hilgeman

Hilgeman worked at the 100-D Area at Hanford during the Manhattan Project.

R. L. Helgeson

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

Frank Avery

Thomas R. Williams

Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.