This family originally from county Monaghan were based in county Wicklow from the mid 18th century. Burke's Landed Gentry (1904) records Robert Warren, a barrister, of Ballydonarea, county Wicklow, Annaghmore, county Cork and Killiney, county Dublin. In the 1870s Robert Warren owned 711 acres in county Cork, 254 acres in county Dublin and 46 acres in county Wicklow.
Contemporary printed sources
- PARLIAMENTARY PAPERS. ''Return of owners of land of one acre and upwards, in the several counties .... in Ireland''. HC 1876, LXXX: 137
- HUSSEY DE BURGH, U. H. ''The Landowners of Ireland. An alphabetical list of the owners of estates of 500 acres or £500 valuation and upwards in Ireland''. Dublin: Hodges, Foster and Figgis, 1878. [available online at www.askaboutireland.ie] : 468