New to this site; hope I'm doing this right!

I'm looking for information on John Wilmot (b. 1790) in England who married Sarah Milton (b. abt 1800) in Kingston, Ontario. They were married abt 1825 and their children are Henry (b.1826) and John (b. 1829). John Sr is listed as a widow on the 1851 Pittsburgh, Frontenac census.

I'm hoping to find a marriage record (date & place) for John & Sarah. I believe their religion was Anglican/Church of England.

Thanks.