National Museum of Nuclear Science & History
Emilio Segrè (1905-1989) was an Italian physicist and winner of the 1959 Nobel Prize in Physics.
W. E. Murray worked for the Tennessee Eastman Corporation at the Y-12 Plant.
E. M. Rogers worked for the United States Engineer District Office.
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.