(06/07/1795-31/03/1873).
Margaret was the widow of Sir James M.R. Bunbury of Co. Tyrone, Ireland. Margaret arrived on 20/06/1855 on the Avalanche with her three daughters and two sons, and prefabricated housing. Her son Willliam preceded her in 1842 on the Diadem. Margaret's children were John R. who remained in Ireland, Diana (1811-1898), who collected plant specimens for Von Mueler, Mary, Emily, William (1817-) and Alfred (1837-1864). She was a Gentlewoman of Picton.