So further research on Joseph Obleman i was able to find the marriage record. It shows Mary's mother as Sarah Mcleod and her father as John Mcleod and that Sarah Smith was their witness. at some point Sarah Mcleod was married to a John Mcleod and must have remarried a Edward Smith ( as per Sarah's Baptismal record) at some point. So I am wondering who Sarah Mcleod was prior to marrying John Mcleod?