DoB from aged 75 at death in 1869.

Sent to me by Barbara Braswell, from Family History Centre tape: Family History Library #101698  1869  Vol 6  Ballymoney Union Kilrea District  102.   Twenty ninth April 1869, Lislea, Mary Gordon, female, widow, 75 years, widow of farmer, Diarrhea, six months, certified. Present at Death, Robert Gordon, Lislea. Registered 13 May 1869. Joseph Clarke, MD, Registrar.
We are assuming Robert was her son-in-law (twice over!).

name:    Mary Ann Gordon
gender:    Female
baptism/christening date:    10 Sep 1829
baptism/christening place:    KILREA,LONDONDERRY,IRELAND
father's name:    Jas Gordon
mother's name:    Mary
indexing project (batch) number:    C70034-1
system origin:    Ireland-ODM
source film number:    0908817 IT 2

Date of Birth - 1901 census.   International Genealogical Index gives day and month for same year as above.  (Eh??) 

Found his baptism in Kilrea CofI church:
25 Sep 1831    Thomas? Gordon    James Gordon    Martha     Lislea        No.84

IFHF confirms a Thomas Gordon baptised to a James Gordon and a Martha Unknown in Kilrea CofI in 1831.

IFHF shows a Thomas Gordon baptised to a James Gordon and Mary Unknown in Kilrea CofI in 1832.

Is this him:
name:    Thos Gordon
gender:    Male
baptism/christening date:    10 Oct 1832
baptism/christening place:    KILREA,LONDONDERRY,IRELAND
father's name:    Jas Gordon
mother's name:    Mary
indexing project (batch) number:    C70034-1
system origin:    Ireland-ODM
source film number:    0908817 IT 2

Or is this him:
name:    Thos Gordon
gender:    Male
baptism/christening date:    25 Sep 1831
baptism/christening place:    KILREA,LONDONDERRY,IRELAND
father's name:    Jas Gordon
mother's name:    Martha
indexing project (batch) number:    C70034-1
system origin:    Ireland-ODM
source film number:    0908817 IT 2

His will, made in 1911, and probated on 25th Nov 1918, gave him as Thomas Gordon, Lislea, farmer, his son, David was the executor and he inherited all the property.

Not sure where I got 1837  The 1901 census gives her as 60 = Date of Birth of 1841 - which cannot be right as she would only have been 14 when she got married!  

Her Date of Death in Civil records gives her age as 78 = Date of Death of 1837.  Present at Death was Joseph H Gordon, son. 

31/10/1839    19/04/1840    1st Kilrea P C        James    Gordon    James    Lislea        Burnside    Mary    Lislea

01/09/1842    06/11/1842    1st Kilrea Pres C        Martha    Gordon    James    Lislea        Burnside    Mary    Lislea

A "minor" when she married in 1855.