Dear Mr. Wilson, There were several Isaac Erratts...I'm looking for the one who had a daughter, Margaret, who marries Joshua Annable 26 Feb 1858 in Winchester Twp., Dundas County, Ontario. She is 19 at the time of the marriage and her parents are given as Isaac and Sarah. It says she was born in Augusta...but I haven't located Augusta...should have it later this week. It may be in Grenville County. If you go to the website www.familysearch.org and ask for the 1881 Canadian Census it will give you a lot of information. I don't know if this is the family you're looking for but stay in touch and I'll keep my eyes open as I search out the Annable connections.