National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
J. B. Mullins worked for the J.A. Jones Construction Company.
T. M. Mitchell worked for the Roane-Anderson Company.
Roy W. Carlson was an engineer. He worked on the Manhattan Project at Los Alamos and the University of California, Berkeley, as a member of the Explosives Division and Group X-2A.
