"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MWXB-LM8 : 15 July 2017), Mary W Barnsley in household of Henry Y Pickering, Titusville, Crawford, Pennsylvania, United States; citing enumeration district ED 123, sheet 261C, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,255,121.
"Pennsylvania, County Marriages, 1885-1950," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VFWN-8MR : 7 January 2020), George C. Worstall and Mary W. Barnsley, 19 Feb 1902; citing Marriage, Bucks, Pennsylvania, United States, multiple County Clerks, Pennsylvania.
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