AHEARN:
John Ahearn, born 1798 in County Cork, Ireland, came to NB June 1820 and settled in South Esk Parish in Northumberland County. He married, 24 Jun 1827 in Newcastle, Ann Meighan born – in Ireland, died 10 Jul 1869.
children:

1) Michael John Ahearn born 30 Dec 1828, married Mary Ann Fortune: settled in Newcastle Parish
2) Mary Ann Ahearn b. 4 Jul 1831, d. Dec 1895, m. John Alexander Fisher b. 27 Jul 1821, died 9 Oct 1866, s/o Angus Fisher and Elizabeth Forsyth
3) Ellen Ahearn born 1833, died May 1909, m. Michael Jardine born 1844, died on 15 Mar 1916 s/o John Jardine and Susan Goggin
4) Catherine Ahearn born 1 Mar 1835, d. 25 Oct 1918, m. Dennis Harrigan born 1832, d. 18 Sep 1915 s/o Dennis Harrigan and Catherine Driscoll
5) John Ahearn born Nov 1836, m. Bridget Harrigan d/o John Harrigan and Ellen Murphy.

PANB:MC80/359 W.D. Hamilton’s Old North Esk: Revised, pgs 44-45
see also PANB:MC80/1234 W.D. Hamilton’s Miramichi Papers, page 132
also see the Northumberland County census.