Sir Robert O'Brien, 4th Baronet (1901-1952) (1901–1952) Parents Gundrerde de Trafford Sir Tim O'Brien, 3rd Baronet Children Patricia O'Brien Shaunagh O'Brien Sheelagh O'Brien Siblings Kathleen O'Brien Doreen O'Brien Ursula O'Brien Mariquita O'Brien Gundrede O'Brien Timothy O'Brien Hilda O'Brien Sicele O'Brien Eileen O'Brien Partners Esther Coghill