Location and coordinates are for the approximate centre of Duddo within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Duddo, township, Norham par., N. Northumberland, 7 miles SW. of Berwick on Tweed, 1887 ac., pop. 181.