May also have daughter Mary B. Knowlton, born about 1830. No documentation available at this time.
Find A Grave Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVK6-B5Z3 : 13 December 2015), John Knowlton, 1844; Burial, Castile, Wyoming, New York, United States of America, Grace Cemetery; citing record ID 44292118, Find a Grave, http://www.findagrave.com.
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