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The Mary Wolverton concerning whom you posed a question appears to be May, born 1 August 1817 in Northumberland County, Pennsylvania, daughter of 2.2.4 Isaac Wolverton (Charles3, Roger2, Charles1) and Lucretia Ann Chamberlain. She her mother's will described her as the wife of Robert Farnsworth.
Mary Wolverton appears on page 121 of The Woolverton Family 1693-1850 and Beyond. It may be difficult to find a copy, but it can be purchsed for $49 (postage included) from Nancy N. McAdams, 1428 Pinnacle View Drive, NE, Albuquerque, NM 87112.