F. W. Schremp, Jr.

Gordon Fielden

Gordon Fielden worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Robert W. Hand

August “Gus” Knuth

August “Gus” Knuth was a millwright and carpenter who helped construct Chicago Pile-1. He was present on December 2, 1942 when the pile went critical in the first self-sustaining chain reaction in history.

Hennie J. Schallis

Hennie Schallis was a staff worker at Los Alamos during the Manhattan Project.