National Museum of Nuclear Science & History
Kerr worked for Stone and Webster Engineering Corporation.
Cecil H. Ensley served in the 603rd Air Engineering Squadron.
Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Engel worked in the United States Engineer District Office.
Hilgeman worked at the 100-D Area at Hanford during the Manhattan Project.
