R.G. Simpson

C. D. W. Thornton

C. D. W. Thornton worked for the Tennessee Eastman Corporation at the Y-12 Plant.

W.G. Chmielewski

W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

J. H. Marsh

J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.

Richard G. Hobday