Sir Henry Blackwood held property in the parish of Killiney, barony of Corkaguiny, at the time of Griffith's Valuation. His representatives held several townlands in the parish of Dysert, barony of Clanmaurice at the same time. The estate amounted to over 1900 acres in county Kerry in the 1870s. This estate may be connected with the Blackwood family of Clandeboye, county Down, afterwards Marquesses of Dufferin and Ava.
Contemporary printed sources
- PARLIAMENTARY PAPERS. ''Return of owners of land of one acre and upwards, in the several counties .... in Ireland''. HC 1876, LXXX: 141
- ''GRIFFITH'S VALUATION OF IRELAND'[Primary Valuation of Tenements]', 1850-1858. : Corkaguiny Barony: 99
- PARLIAMENTARY PAPERS. ''Return of names of proprietors and area and valuation of properties in counties in Ireland, held in fee or perpetuity or long leases at chief rents,'' 1876. (412) LXXX. 395: 74.
- 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] : 37.