I have been working on this one for a long time, and it isn't totally clear to this day.But, I can tell you that the Isaac Vermillion who married Sarah Ann Mattingly in Barry County, MO, on Feb. 1, 1874, was not Isaac born 1843 the son of Reuben and Rebecca.That Isaac married Sarah Barker and they remained married until his death in 1909 in Bosque, TX.
Isaac born 1843 had a brother named Uriah (married Matilda Etheridge) who had a son born 1853 named Isaac.This son married Nancy A. Williams in July of 1881 in Lawrence County, MO., but the record of the marriage is found in Barry County's record books.
It is possible that Isaac born 1853 may have first married Sarah Mattingly, but there is no documentation that supports this and no explanation of why the marriage ended (no divorce, no death certificate for Sarah).
It is also possible that Isaac born 1844 in Missouri, the son of James John and Elizabeth (Hensley) Vermillion, may have been the one who wed Sarah Mattingly. This Isaac's mother died sometime between 1855 and 1860, and the father moved the family "across the river" to Kansas.I have found no other possible Isaac Vermillions who could have married Sarah Mattingly, but I do have a copy of the 1874 marriage record in my files.
Should you find an answer as to the connection of the Isaac Vermillion who married Sarah Ann Mattingly, I would appreciate knowing what you have found.I can tell you that Ira Vermillion's "Book of Vermillion" shows Sarah married to Isaac born 1853 (son of Uriah and Matilda) -- but Ira offered nothing to support that connection.