It lent depth to Olive's interest that she married into a pre-Conquest, west of England family ennobled by Henry II in the twelfth century. In 1909 she married Dr Hardinge Clarence Fitzhardinge (1878–1958), a Macquarie Street dental surgeon.BDM data for NSW online, Fitzhardinge–MacMaster marriage 1909 , retrieved 7 April 2012. He was the son of M.A.H. Fitzhardinge, a prominent Sydney solicitor from the second generation of the well-known NSW legal family founded in the 1840s by W.G.A. Fitzhardinge. W.G.A. Fitzhardinge had nine sons, five of them NSW lawyers. He was a descendant of the Earls of Berkeley and of Earl Fitzhardinge.
