Together with the Oe clan, Sugawara no Furuhito's descendants, including his son, Sugawara no Kiyokimi (770-842) (Junior Third Rank, non-Councilor), and his grandson, Sugawara no Koreyoshi (812-880) (Junior Third Rank, Councilor), served the Court for generations, working in the field of Kidendo (Literature).
菅原古人の子菅原清公（770年～842年）（従三位・非参議）、および孫の菅原是善（812年～880年）（従三位・参議）を含め、大江氏と並んで子孫は代々、紀伝道（文章道）を家業として朝廷に仕える。