P. H. Gray

Roger Hartley White Sr.

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.

O.S. Jennings

J. F. Walsh

Walsh worked for Stone and Webster Engineering Corporation.

Natale J. Bifano

Bifano worked at Los Alamos during the Manhattan Project.