National Museum of Nuclear Science & History
R. Petyko worked for the Roane-Anderson Company.
A. H. Dahl worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Webb worked at the 200 West Area at Hanford during the Manhattan Project
