After Charles died in 1877, Mary remarried Frederick Hutchins. She is listed on the 1880 US Census with him, her two daughters with Charles and two more children.
Unable to find marriage record on FS. (McNamee-238 18:06, 8 July 2017 (EDT))
United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MNDW-K64 : 17 October 2014), Mary Bayless in household of Charles Bayless, New Jersey, United States; citing p. 15, family 116, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,352.
United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MNZL-SNN : 14 July 2016), Mary Hutchins in household of Frederick Hutchins, Bordentown, Burlington, New Jersey, United States; citing enumeration district ED 17, sheet 155B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0772; FHL microfilm 1,254,772.
New Jersey State Census, 1885," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:6PRJ-K2M : 18 November 2014), Mary L Hutchins in household of Fredrick Hutchins, Burlington, Ward 01, Burlington, New Jersey; citing p. 87, Department of State, Trenton; FHL microfilm 888,601.