Location and coordinates are for the approximate centre of Firsby within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Firsby.-- par. and ry. sta., mid. Lincolnshire, on river Steeping, 4 miles SE. of Spilsby, 910 ac., pop. 235.