Denis Brennan was a son of Jeremiah (Derby) Brennan and Kate Donovan of Deelish.
Margaret Hourihane was a daughter of Jeremiah Hourihane and Margaret Regan of Reabawn (Corran North), Kilmacabea

Denis Brennan of Drimoleague Parish and Margaret Hourihane of Filldearg (Corran Middle), Kilmacabea Catholic Parish married in the Catholic Parish of Kilmacabea (Leap) on 3 November 1855.  The Witnesses were Denis Murphy and Hugh Delany.

Children born at Deelish, and baptised in Drimoleague Parish on dates shown were:

Thomas Brennan, 17 Apr 1859.  Sponsors: John Crowley, Margaret Regan

Mary Brennan, 28 June 1861.  Sponsors: Thomas Kingston, Mary Crowley

Patrick Brennan, 4 Oct 1863.  Sponsors: Norry Deane, Robert Brenane

Jane Brennan, 12 Nov 1865.  Sponsors: John Sheehan, Jane Brennan

Margaret Brennan, 5 Apr 1868.  Sponsors: Timy Donovan, Mary Brenan.  Margaret died at Deelish on 12 Sep 1905.  She was single

Denis Brennan, 20 Feb 1870.  Sponsors: Dan Sullivan, Mary Sullivan

Timothy Brennan, 24 Mar 1872.  Sponsors: Thomas Brennan, Julia Regan

Ellen Brennan, 27 May 1874.  Sponsors: John Crowley, Mary Deane

James Brennan, 1 Dec 1875.  Sponsors: Thomas Brennan, Honora Brennan

Census 1901:
http://www.census.nationalarchives.ie/pages/1901/Cork/Dromdaleague_South/Deelish/1153999/

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Dromdaleague_South/Deelish/440183/

Deaths:
Denis Brennan died tragically on 2 December 1889 in Bantry Hospital.  .From his death record he was married, aged 60 years and a farmer
Margaret Brennan died at Deelish on 28 January 1912.  From her death record she was a widow, aged 80 years, a farmer's widow.  Present at her death and the Informant to the Registrar was her daughter, Mary Regan of Aghaville.