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.
Smith worked at the 200 East Area at Hanford during the Manhattan Project.
Graf worked at the 300 Area at Hanford during the Manhattan Project.
