Robert M. Sprague

Charles A. Thomas

Charles Allen Thomas (1900-1982) was an American chemist and industrial leader. Thomas was recruited to join the Manhattan Project in 1942 by General Groves, who offered him a postion as a deputy to Robert Oppenheimer, the director of the Los Alamos Laboratory in New Mexico.

H. J. Mayberry

H. J. Mayberry worked for the Union Carbide & Carbon Corporation.

Henry Robert Barwick

Henry Barwick worked as a plumber, pipefitter, and steamfitter during the building of the Y-12 plant at Oak Ridge.

Mattie Parks