It's a long shot, but here is a potential 1900 census record that could be her. It's in Oswego County, so it's conceivable that after her husband's death, she moved back in with her sister (again, presuming that this is her sister in the census).
"United States Census, 1900," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MSL4-BCC : accessed 23 May 2016), Clorinda Benson in household of Frank H Harwood, Granby Township Oswego Falls village, Oswego, New York, United States; citing sheet 2B, family 48, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,143.