I am searching for a Mary, possibly Dewar, who was born on the Isle of Man c1811. She married Joseph Edgar, b 1810 in England; either she and her family or she and Joseph emigrated to Ontario, Canada, in the 1830s. They may have been part of the Petworth Migration to Woodstock, Oxford County, where they had children baptised in 1837 and 1838.

Were there any Dewars on the Isle of Man during that time period? Are any other Mary's listed as being born or baptised around 1811?

Mary consistently gave her birthplace as the Isle of Man in the censuses in Ontario, and her children also showed that as her birthplace