In the 1851 Canada Census for Pickering, Ontario County, Canada West (Ontario) the family of Israel Barnum was enumerated as follows:
Israel Barnum, Retired, b. United States, No religion, 66 at next birthday, Male
Lydia Barnum, b. United States, 57 at next birthday, Female
Lorenzo Barnum, b. Canada, 10 at next birthday, Male
Henry Barnum, Labourer, b. Canada, 23 at next birthday, Male
Israel Barnum received W 1/2 lot 23 in Essa Township (Ontario, Canada) on 14 Mar 1831, as a free grant because of his military service. His residence at that time was in Sidney Township. He never moved to Essa and probably sold the land. He later moved to Pickering, where he died.