National Museum of Nuclear Science & History
W. S. Anderson worked for the Roane-Anderson Company.
Roger Sr was a mechanical engineer having graduated from Stanford University during World War II. He and his wife, Katherine Barnes were recruited by the FBI who made contact with them at the Santa Fe training station when they were leaving town, after their honeymoon at Ghost Ranch.
W. J. Scanlan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.