Query: Whittiker

Need some help. Looking for grave of Mary Jane WEIR WHITTIKER. She was living in Quitman with granddaughter Sarah Jenetta LUMAN in 1920. She doesn’t show up again in any census, so I expect she died (she was 84 and getting a check from the county for being a poor).
Working full time and can’t get to the court house or list of cemeteries. Any help would be appreciated. You can respond to this query by posting a comment or by clicking this link at Genealogywise.
Jammie barker