re: Samuel McFadden, b.1811 in Ireland,
m. 10 Nov 1836 Martha Adair, b.1811.
1st child,Nancy, b. 4 Aug 1837 d. 10 Dec 1837, bur. Ireland. 2nd child William Wallace McFaddan, b. 30 Jun 1839 Ireland.
In Samuel's diary, the family left the pier at Belfast on 6 April 1840 on the "Robert Kerr" for Canada. They traveled to the township of Wolford in Ontario where Martha's brother John Adair joined them from New York.
Ontario, Canada, 1881 census, Grenville Leeds :
Div. 1 p.20 household 92 :
William Adair, 72 yrs, b.1809, Ireland
Mary Adair, 70 yrs, b.1811, Ireland
Dist.107, Sub Dist.E, Div.1 p.10 household 43 :
(all b. Ontario)
John Adair, 39yrs, b.1842 Ontario
Mary Adair, 40yrs, b.1841 Ontario, married on Ontario ?
Mary Adair, 17yrs, b.1864
Anne Adair, 15yrs, b.1866
John Adair, 14yrs, b.1867
Ellen Adair, 11yrs, b.1870
William Adair, 7yrs, b.1874
Constentine Adair, 5yrs, b.1876
Agnes Adair, 1yr, b.1880
I have not seen the 1851 census,
nor the Passenger List 1840 "Robert Kerr" to Canada,
but would Martha Adair (McFadden) b.1811 be related,
perhaps a sister of William Adair b.1809 ?