National Museum of Nuclear Science & History
F. Ernsberger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Brill was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.
Arthur S. Olson was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
