I also have O'Hanley/McDonalds from Parkhill, Ontario on my family tree. Sarah O'Hanley my great grandmother was the daughter of Malcolm O'Hanley and Catherine MacCormack
natives of Inverness Scotland . Sarah was married to Donald Stephen McDonald my great grandfather. His father was Ronald McDonald from South Uist, Scotland. Donald was first married to a Catherine MacDonald whose father was Archibald MacDonald he married Sarah after Catherine's
death. I have no verification of this information as it was collected many years ago by a relative who has since passed away. I do have records regarding these families after they left Canada to settle in Saginaw and Midland Michigan.