Scott Co Va Hensleys

Desperately seeking information on AMANDA "Mandy" IONA HENSLEY FLANARY born ca1881.She married Tandy Harvey Flanary on 3Mar1903.She had a sister, Mary Hensley born ca1876, who married Tandy's father Lafayette Flanary on 5Jun1897 (her sister was her mother-in-law).I can find no information on Mandy's parents or other siblings. There is a Margaret Hensley born ca 1838 listed on the 1880 census with a daughter Mary born ca 1876 and 5 other children.Margaret is listed as "single".Mandy is my great-grandmother.HELP PLEASE!