Cornelius Shea was a son of Timothy Shea
Catherine Buckley was a daughter of Denis Buckley and Honora Buckley.

Cornelius O'Shea (28) of Lackaduv and Catherine Buckley (18) of Gortavranner married in the Catholic Church in Clondrohid on 25 February 1868.  The witnesses were Patrick Buckley and Jeremiah Shea.

Children born at Lackaduv on dates on Civil Birth Register:

Timothy Shea, 27 Feb 1869

Denis Shea,

Margaret Shea, 17 Aug 1874

Jeremiah Shea, 16 May 1877

Michael Shea,

Abina Shea, 2 Mar 1881

Honorah Shea, 3 Aug 1883

Catherine Shea, 9 Apr 1886

Mary Anne Shea, 7 Feb 1888.  Mary died 20 Mar 1890.

Census 1901:
http://census.nationalarchives.ie/pages/1901/Cork/Rahalisk/Lackaduo/1126418/

Census 1911:
http://census.nationalarchives.ie/pages/1911/Cork/Rahalisk/Lackaduv/426549/

Deaths:
Cornelius Shea died on 8 June 1918 at Lackaduff.  From his death record he was married, aged 80 years, a farmer.  Present at his death and the Informant of it to the Civil Registrar was Abina Shea, his daughter of Lackaduff.
Kate Shea died on 2 September 1921 at Knockraheen.  From her death record she was a widow, aged 72 years, widow of a farmer.  Present at her death and the Informant to the Civil Registrar was Denis Shea, her son of Knockraheen.
Death Notice on the newspaper on 3 September 1921:
O'SHEA - On Sept. 2nd., at her residence, Lackaduve, Carriganima, Katie, relict of the late Cors O'Shea. R.I.P.  Funeral on this day (Saturday), at 2 o'clock for Clondrohid.