National Museum of Nuclear Science & History
Holt worked for Stone and Webster Engineering Corporation.
Richards worked at the 100-D area at Hanford during the Manhattan Project.
Norma J. Hinton was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Chambers worked at the 300 Area at Hanford during the Manhattan Project.
William Pickel worked for the Western Union Telegraph Company.