Hello, Al. I am descended from the McLatchie clan which emmigrated to Canada circa 1820, and settled in Lanark, near Perth Ontario. Later they moved on to the West Templeton Quebec area, when they discovered that the 100 acre lots they were granted couldn't support them.
The family history relates that during the McLatchie's journey to Upper Canada they stayed with a family member on the St. Lawrence River before heading inland. That would have been Robert McLatchie (28 Jan. 1789 - 7 June 1847) and his wife Jane (or Jean) Hunter (29 march 1793 - 11 Apr. 1867), who lived in Grenville County, Ontario.
Are those your relations?