Creighton married Eleanor Platt of Montreal in 1878. Creighton was a member of the Rideau Club in Ottawa and captained their ice hockey team that opened the new Rideau Skating Rink in 1889. It was at the Rideau Club where Creighton suffered a fatal heart attack in 1930. At his funeral, Canadian Prime Minister Robert Borden was one of the mourners. His wife Eleanor died not long afterwards. Creighton and Platt were interred at Ottawa's Beechwood Cemetery. For many years, the grave was left unmarked. The couple had no children, which may be why there was no monument erected on the grave.