Jeremiah Donovan was a son of Jerry Donovan
Kate Brien was a daughter of Garrett Brien and Catherine Hourihan.

Jerry Donovan of Balteenbrack and Kate Brien of Milleenanig married on 13 February 1877 in the Catholic Church in Dunmanway.  The Marriage Witnesses were Michael Luicey and Anne Hurley.

Children born on dates on Civil Birth Register:

Julia Donovan, baptised 10 Nov 1877*; birth date on Civil Register given as 14 Dec 1877 @ Gurtnamucklagh

Patrick Donovan, baptised 20 Feb 1880, birth date on Civil Register given as 27 Apr 1880 @ Gurtnamucklagh

Mary Donovan, 2 Mar 1882 @ Gurtnamucklagh

Jeremiah Donovan, 14 Mar 1884 @ Gurtnamucklagh

Catherine Donovan, 29 May 1886 @ Nedinagh

Margaret Donovan, 28 Jan 1889 @ Nedinagh

John Donovan, 7 Apr 1891 @ Gurtnamuckla

Ellen Donovan, 31 July 1893 @ Gorteenroe

William Donovan, 2 Jan 1896 @ Gurteenroe

James Donovan, 5 June 1897 @ Nedinagh

Timothy Donovan, 1 May 1899 @ Dromidiclogh

Anne Donovan, 27 Apr 1902 @ Dromidiclogh,  Ann died 14 Sep 1902

* I have seen several examples of this where the Civil record has the birth a number of days, weeks and even months  after the baptism.  Also noting that the event was in each case registered some weeks after the birth date on the Civil register.  I believe that the baptism date is far more reliable as being very close to the birth date as it was customary to baptise babies within a day or two of their birth..
Under the Births and Deaths Registration Act, 1874 it was "the duty of the father and mother of the child, and in default of the father and mother, of the occupier of the house in which to his knowledge the child is born, and of each person present at the birth, and of the person having charge of the child, to give to the registrar, within forty-two days next after such birth, information of the particulars required to be registered concerning such birth, and in the presence of the registrar to sign the register". You were liable to be fined if a birth was registered late and so to avoid paying the fine it appears that some families gave a date of birth for the child later than the actual date and such can result in the baptism date predating the birth date in the records, and causing confusion for some researchers.
 

Census 1901:
http://www.census.nationalarchives.ie/pages/1901/Cork/Kinneigh/Dromdiclogh/1140861/

Census 1911:
http://www.census.nationalarchives.ie/pages/1911/Cork/Aultagh/Aultagh/409344/
 

Deaths:
Jeremiah Donovan died at Aultagh on 12 April 1919.  From his death record he was married, aged 65 years, a caretaker.  Present at his death and the Informant of it to the Civil Registrar was Kate Donovan, Aultagh, widow of deceased.
Kate Donovan died on 5 October 1929 at Dunmanway hospital.  From her death record she was late of Aultagh, a widow, aged 74 years, a labourer's widow.