F, b. 1851
| Birth* | 1851 | Mary Catherine Jeffrey was born in 1851 at Ireland . |
| (with Parents) Census1871 | June 1871 | She appeared on the 1871 Census of Ross Twp, Renfrew County, Ontario in the household of her parents, Samuel Jeffrey and Catherine Lowery. |
| Marriage* | 15 August 1873 | Mary Catherine Jeffrey married Hugh Gordon on 15 August 1873 at Ross Twp, Renfrew County, Ontario. |
| Census1881* | 1 April 1881 | Mary Catherine Jeffrey and Hugh Gordon appeared on the 1881 Census of Ross Twp, Renfrew County, Ontario, enumerated 1 April 1881. Their children Samuel Watt were listed as living with them. |