Dominick Casey and Joan Mahony married before available records and may have had children before the available records.
 

Children baptised in Drimoleague on dates on Baptismal Register include:

Eliza Casey, 27 Feb 1819.  Sponsors: Denis Mahony, Joan Mccarthy

William Casey, 26 Apr 1822.  Sponsors: Denis Collins, Mary Gervas

Joan Casey, 30 May 1825.  Sponsors: George Mahony, Berry Kingston

Anne Casey, 30 Dec 1827.  Sponsors: George Mahony, Julian Mahony

Domk Casey, 14 June 1829.  Sponsors: George Mahony, Norry Mahony

Kate Casey, 17 May 1831.  Sponsors: Denis Casey, Nancy Mahony

Peg Casey, 29 May 1833.  Sponsors: George Mahony, Julian Collins

Deaths:
Dominick Casey died in 1868, aged 86 years
Johanna Casey died on 16 December 1882 at Ceancullig, Drimoleadue.  From her death record she was a widow, aged 95 years, widow of Donomick Casey (a farmer, deceased).  Present at her death and the Informant of it to the Civil Registrar was William Driscoll of Drimoleague.