National Museum of Nuclear Science & History
Miguel Romo was a staff worker at Los Alamos during the Manhattan Project.
Hayden Rector was a contract attorney for the U.S. Army Corps of Engineers at Hanford, WA during the Manhattan Project.
George Watt was an American chemist. Watt was a professor of chemistry at the University of Texas, Austin.
Caldwell worked at the 200 West Area at Hanford during the Manhattan Project.