National Museum of Nuclear Science & History
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
D. D. Carmichael served in the 390th Air Service Group.
Tony Padilla was a staff worker at Los Alamos during the Manhattan Project.
