National Museum of Nuclear Science & History
John Owen worked for the Roane-Anderson Company.
Herbert Etzler worked for the Roane-Anderson Company.
Andrew Welch was a janitor at the Chicago Met Lab during the Manhattan Project.
W. B. Bunn worked for the Edenfield Electric Company.
Cardea Hubbard was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.