Thomas Finn was a son of Patrick Finn and Mary Sullivan.
 

 Thomas Finn's first marriage to Mary Brien 

Mary Brien was a daughter of James Brien and Ellen Triggs.

Thomas Finn of Derryduff and Mary Brien of Clodagh married on 30 January 1883 in the Catholic Church in Drimoleague.  The Witnesses were Michael Brien and Julia Brien.

Children born on dates on Civil Birth Register:

John Finn, 21 Nov 1883 @ Lissane.  John died 21 Nov 1883

Mary Finn, 20 Feb 1885 @ Ceancullig

Ellen Finn, 8 Dec 1886 @ Ceancullig

Kate Finn, 8 Sep 1888 @ Kilnahery

Patrick Finn, 20 Oct 1890 @ Ceancullig.  Patrick died 30 Oct 1890

John Finn, 24 June 1891 @ Ceancullig

Bridget Finn, 29 June 1892 @Ceancullig

Julia Finn, 29 Jan 1895 @ Bawnahow.  Julia died 16 Apr 1895

Daniel Finn, 17 June 1896 @ Bawnahow.  Daniel died 8 July 1896

Death:
Mary Finn died at Bawnahow on 24 June 1896.  From her death record she was married, aged 35 years, a labourer's wife.  Present at her death and the Informant of it to the Civil Registrar was Ellen Brien, Bawnahow.

 Thomas Finn's second marriage to Bridget McCarthy 

                             Thomas Finn                                            Bridget McCarthy

Bridget McCarthy was a daughter of Thomas McCarthy

Thomas Finn, a widower, of Caheragh and Bridget McCarthy of Chapel Lane, Skibbereen married in Skibbereen on 9 June 1897.  The Witnesses were Denis Mahony and Katie McCarthy.

Children born on dates on Civil Birth Register:

Eliza Finn, 9 May 1898 @ Caheragh

Thomas Finn, 19 Apr 1900 @ Caheragh

Margaret Finn, 12 Apr 1902 @ Butlersgift

Hannah Finn, 15 May 1904 @ Glounathnaw

Michael Finn, 23 Aug 1906 @ Glounathnaw

Eileen Finn, 24 Feb 1909 @ Dromore

Cornelius Finn, 1 Sep 1910 @ Dromore

Nora Finn, 24 Aug 1913 @ Dromore

Census 1901:
http://census.nationalarchives.ie/pages/1901/Cork/Bredagh/Baurnahulla/1153346/

Deaths:
Thomas Finn died at Dromore on 17 December 1941.  From his death record he was married, aged 79 years, a labouter.  Present at his death and the Informant to the Civil Registrar was Michael Finn, his son, of Dromore
Bridget Finn died on 27 November 1952 at Ballyhandle, Upton..  From her death record she was a widow, aged 79 years.  Present at her death and the Informant of it to the Civil Registrar was Margaret Collins, her daughter of Ballyhandle.