Unable to find a source for her on Ancestry or Family search, nor does she have a grave on find a grave. The closest thing I've found so far to proof of her existence is that Jacob's middle name started with an H (supposedly the h stands for Hildebrand). The earliest I can find a Hildebrand in Guernsey, Ohio is 1843.
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Mary is 22 degrees from Olivia Newton-John, 21 degrees from Eunice West, 20 degrees from Frankie Avalon, 19 degrees from Joan Blondell, 17 degrees from Stockard Channing, 20 degrees from Jeff Conaway, 19 degrees from Lorenzo Lamas, 23 degrees from Dinah Manoff, 22 degrees from John Travolta and 19 degrees from Jan Hellier on our single family tree. Login to find your connection.