Bailey, Mary (‘Lady Bailey’) (née Westenra) (1890–1960), aviator, was born on 1 December 1890 at 30 Grosvenor Square, London, to Derrick (Derry) Warner William Westenra (1853–1921), the fifth Baron Rossmore, and his wife Mittie (née Naylor) (d. 1953), the daughter of a wealthy English…...