The photo image shows this was the seventh marriage for Erastus.
"New Hampshire Marriage Records, 1637-1947," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FLXN-4TF : 12 December 2014), Erastus Fisk and Mercy Barker, 13 Sep 1882; citing Lyman, Grafton, New Hampshire, Bureau of Vital Records and Health Statistics, Concord; FHL microfilm 1,000,993.
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Mercy is 25 degrees from Herbert Adair, 23 degrees from Richard Adams, 21 degrees from Mel Blanc, 23 degrees from Dick Bruna, 20 degrees from Bunny DeBarge, 32 degrees from Peter Dinklage, 22 degrees from Sam Edwards, 20 degrees from Ginnifer Goodwin, 21 degrees from Marty Krofft, 14 degrees from Junius Matthews, 15 degrees from Rachel Mellon and 21 degrees from Harold Warstler on our single family tree. Login to find your connection.