Yes I do belong to Ancestry currently only USA but have access to world at the local Mormon church and library or could upgrade if there was enough records to check. I've been focusing on the last family you listed as the ages of John and Mary match up with what I know. Mary A in that list is the one who married George Oven. Also John and Emma had children born in Port Huron and I did email with someone from the "LaVire" family tree. I'm also wondering if Mike Dwyer may have been away with the Civil War. There is a Mike Dwyer listed on Detroit records.