National Museum of Nuclear Science & History
Clarence Joyce worked for the Poe Piping & Heating Company.
J. B. Mullins worked for the J.A. Jones Construction Company.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
J. M. Herndon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.