M, b. 24 June 1861
| Birth* | 24 June 1861 | John S Ferguson was born on 24 June 1861 at Ontario . |
| (with Parents) Census1871 | 2 April 1871 | He appeared on the 1871 Census of Montague Twp, Lanark County, Ontario in the household of his parents, John Ferguson and Elizabeth McCormick. |
| (with Parents) Census1881 | 1881 | John S Ferguson appeared on the 1881 Census of Montague Twp, Lanark County, Ontario in the household of his parents, John Ferguson and Elizabeth McCormick. |
| (with Parents) Census1891 | 6 April 1891 | John S Ferguson appeared on the 1891 Census of Montague Twp, Lanark County, Ontario in the household of his parents, John Ferguson and Elizabeth McCormick. |
| (with Parents) Census1901 | 18 April 1901 | John S Ferguson appeared on the 1901 Census of Montague Twp, Lanark County, Ontario in the household of his parents, John Ferguson and Annie (?) |
| (with Mother) Census1911 | 13 June 1911 | John S Ferguson appeared on the 1911 Census of Montague Twp, Lanark County, Ontario in the household of his mother Annie (?) |