National Museum of Nuclear Science & History
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Roland Kreuger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. J. Dowis worked at the 200 West Area at Hanford during the Manhattan Project.
J. R. Thompson worked for the J.A. Jones Construction Company.
