Denis Donovan was a son of Richard Donovan and Ellen Hurley.
Ann Mahony was a daughter of John Mahony

Denis Donovan of Keelaraheen and Ann Mahony of Knock..... married in the Catholic Church in Dunmanway on 26 January 1867.  The Witnesses were Richard Donovan and Johanna Buckley.

Children born in Keelraheen and baptised in Dunmanway on dates on Baptismal Register:

Timothy Donovan, 8 Nov 1867.  Sponsors: Michael Donovan, Mary Mahony

Daniel Donovan, 27 May 1869.  Sponsors: Pat Donovan, Margaret Mahony

Richard Donovan, 20 Feb 1870.  Sponsors: Richard Donovan, Mary Mahony.  Richard died 1870

Patrick Donovan, 27 Jan 1871.  Sponsors: Jerry Mahony, Ellen Donovan

Denis Donovan, 20 Feb 1872.  Sponsors: Denis Sullivan, Ellen Ahern

Richard Donovan, 13 Aug 1873.  Sponsors: Michael Mahony, Ellen Donovan

Daniel Donovan, 5 Sep 1875.  Sponsors: Daniel Donovan, Mary McCarthy

Michael Donovan, 13 Apr 1878.  Sponsors: Mick Donovan, Kate Donovan

Ellen Donovan, 13 Dec 1880.  Sponsors: Richard Donovan, Catherine Hurley

Anne Donovan, born 6 Oct 1891 from Civil Birth Register

Census 1901:
http://www.census.nationalarchives.ie/pages/1901/Cork/Coolmountain/Keelraheen/1141507/

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Coolmountain/Keelaraheen/409724/

Deaths:
Denis Donovan died at Keelraheen on 6 April 1921.  From his death record he was married, aged 86 years, a farmer.  Present at his death and the Informant of it to the Civil Registrar was Richard Donovan, his son.
Anne Donovan died on 2 March 1924 at Keelraheen.  From her death record she was a widow, aged 80 years, a farmer's widow.  Present at her death and the Informant to the Civil Registrar was Daniel Donovan, her son.