Location and coordinates are for the approximate centre of Blackthorn within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Blackthorn, township, Ambrosden par., NE. Oxfordshire, 3 miles SE. of Bicester, 2031 ac., pop. 314.