At the Northern Ireland general election, 1945, Downey was elected for Belfast Dock, defeating sitting Ulster Unionist Party member George Anthony Clark.
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Downey lost the seat at the 1949 general election.
Hugh Masekela | Hugh Jackman | Hugh Grant | Hugh Laurie | Robert Downey, Jr. | 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 | Mike Downey | Hugh Walpole | Hugh O'Neill, Earl of Tyrone | Hugh de Lacy | 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 | Downey | Hugh Wolff | Hugh Trevor-Roper | Hugh Shelton |