His son Robin, who enjoyed the courtesy title Marquess of Tavistock, ran the Abbey with his wife in his father's absence.
Na negativne komentarje s strani drugih aristokratov, ko je spremenil družinski dom v safari park, je 13. vojvoda dejal: "Ne uživam v tem, da se mi plemstvo posmehuje; ampak bolje je, da nate gledajo zviška kot da te popolnoma spregledajo.