National Museum of Nuclear Science & History
Hollis worked for Stone and Webster Engineering Corporation.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
C. H. Everett worked for the Comstock-Bryant Electric Company.
H. J. Peyton worked for the United States Engineer District Office.
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
