M, b. 1781
| Birth* | 1781 | James Wilson Sr was born in 1781 at Ireland . |
| Marriage* | | He married Sarah Harper. |
| Marriage* | 26 October 1846 | James Wilson Sr married Sarah Hall on 26 October 1846 at Ramsay Twp, Lanark County, Ontario. |
| Census1851* | 1851 | James Wilson Sr and Sarah Hall appeared on the 1851 Census of Fitzroy Twp, Carleton County, Ontario, enumerated 1851. |
| Census1861* | 1861 | James Wilson Sr and Sarah Hall appeared on the 1861 Census of Fitzroy Twp, Carleton County, Ontario, enumerated 1861.. |
| Census1871* | 2 April 1871 | James Wilson Sr and Sarah Hall appeared on the 1871 Census of Fitzroy Twp, Carleton County, Ontario, enumerated 2 April 1871.. |