National Museum of Nuclear Science & History
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.
Fisher worked for Stone and Webster Engineering Corporation.
William Schneller attended Muhlenberg College, graduating in 1942, and then was hired by the DuPont Company.
B. R. Burks worked for the Tennessee Eastman Corporation at the Y-12 Plant.