Born circa 1706 Charles County Maryland, daughter of Francis Dunnington Sr. (b. 1665 Maryland to George + Elizabeth Key Dunnington of Settrington Yorkshire) and Margaret Beck. Married Joseph Ratliff. Mother of Zephaniah Ratliff. Died Charles County Maryland circa July 1783. Siblings: Elizabeth (m. Laughlane McClain), Francis II, Rebecca (m. John Perry), John Dunnington.