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. Their children James, Martha Jane and Mary Ann were listed as living with them. |
| Census1861* | 1861 | James Wilson Sr and Sarah Hall appeared on the 1861 Census of Fitzroy Twp, Carleton County, Ontario, enumerated 1861. Their daughter Martha Jane was listed as living with them. |
| 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. Their daughter Martha Jane was listed as living with them. |