Leonard was the brother-in-law to the late academic Michael Swann (Lord Swann of Coln St Denys) and Hugh Swann, cabinet maker to Elizabeth II of the United Kingdom, having married their sister, Priscilla Swann, in 1943.
Hugh Masekela | Hugh Jackman | Hugh Grant | Hugh Laurie | Lynn Swann | Hugh Hefner | Hugh | Hugh O'Brian | Hugh Grosvenor, 2nd Duke of Westminster | Hugh Percy, 2nd Duke of Northumberland | Hugh Percy, 1st Duke of Northumberland | Hugh Martin | Hugh Dennis | Hugh Walpole | Hugh O'Neill, Earl of Tyrone | Hugh de Lacy | Flanders and Swann | St Hugh's College, Oxford | Hugh Wheeler | Hugh Trenchard, 1st Viscount Trenchard | Hugh Trenchard | Hugh Pughe Lloyd | Hugh MacDiarmid | Hugh Lloyd | Hugh Greene | Hugh Carey | Graeme Swann | Hugh Wolff | Hugh Trevor-Roper | Hugh Shelton |