Maybe you found this already - this looks like them in 1900:
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MS8V-ZZ3 : accessed 21 May 2018), George Jones Jr., Civil District 21, Giles, Tennessee, United States; citing enumeration district (ED) 36, sheet 3B, family 64, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,572.
It says she was born in Alabama about 1873.
Then, George, remarried, with family in the same District in 1910:
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MGFP-1LH : accessed 21 May 2018), George Jones, Civil District 21, Giles, Tennessee, United States; citing enumeration district (ED) ED 37, sheet 6B, family 101, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1500; FHL microfilm 1,375,513.
Sometimes the local historical/genealogical societies have info not available online. Good luck!