National Museum of Nuclear Science & History
Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.
C. D. Wilder 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.