Location and coordinates are for the approximate centre of Thornley within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Thornley.-- eccl. dist., township, and vil. with ry. sta. (2 miles E.), Kelloe par., in co. and 6 miles SE. of Durham - dist., pop. 5982; township, 1148 ac., pop. 3132; P.O., T.O.; has collieries.