Are the kids listed below really her? Look at their birthdates relative to marriage.
Edgar Cress’ book says they married in 1854 in Russell Co., VA but that marriage was to Ellen J. Crawford.
1920 TN census: Living in Loudon Co. aged 65 with daughter, Margaret (20). (SV-1287.13)
1930 U.S. Census (Ancestry.com) She is listed, aged 76 living with daughter, Neva in Riverside, Riverside Co., CA. (SV-1313.5)