National Museum of Nuclear Science & History
Bartholomew "Bart" Rivers was an instrument technician at the Hanford, Washington facility from 1943 through the end of the war.
Elizabeth Campbell was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Monroe Messinger was born in New Jersey and grew up in Brooklyn and Long Island. He received a Bachelor of Science degree from the College of the City of New York.