It is impossible for me to adequately express my gratitude to Robert and his wife, Elizabeth, for their extraordinary hospitality, generosity, and kindness. Not only did they provide bed and board at their beautiful Virginia farm, answer endless questions about the family, no matter how frank, but also somehow arranged for me to be allowed inside Marsh’s beloved Longlea, which is presently owned by the religious sect Opus Dei. I am also deeply grateful to Robert’s mother, Antoinette Marsh Haskell, for sharing with me her detailed memories of the young RAF officer who frequented her father’s house on R Street. In pursuing firsthand sources, I was helped immensely by the author William Stevenson, who granted me access to his archive at the University of Regina in Canada, which includes the unedited and unpublished transcripts of interviews with members of the BSC conducted by the CBC for the 1972 documentary A Man Called Intrepid, which led to Stevenson’s best-selling book by the same name, as well as interviews and related correspondence for the radio programs The Two Bills, The Great Canadian Spy and Martin Bormann.
