National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Walton A. Rodger was an American chemical and metallurgical engineer. Rodger received a Ph.D. in chemical engineering from the University of Illinois.
C. E. Telzrow worked for the H. K. Ferguson Company.
William Ladniak worked for Clinton Laboratories at the X-10 Reactor.
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
