Due to a marriage connection the Bennison family, of Slieve Russell, county Cavan, acquired Ellis estates in county Leitrim. In 1876 James Bennison held 275 acres in Leitrim as well as lands in Cavan and Armagh.
Contemporary printed sources
- PARLIAMENTARY PAPERS. ''Return of owners of land of one acre and upwards, in the several counties .... in Ireland''. HC 1876, LXXX: 303
- 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] : 29