National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Frank Gerhart worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Estelle B. Lucas was a laboratory assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hoferer worked at the 100-F Area at Hanford during the Manhattan Project.
