In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Longton like this:
LONGTON, a village, a township-chapelry, and a subdistrict, in Preston district, Lancashire. The village stands adjacent to the head of the Ribble's estuary, 3½ miles W of Preston-Junction r. station, and 5 SW of Preston; is about 2 miles long; and has a post office under Preston.The chapelry comprises 3,132 acres of land, and 560 of water; and is in Penwortham parish. ...
Real property, £6,784. Pop., 1,637. Houses, 310. The property is much subdivided. Malting is largely carried on; and there are two breweries. The living is a p. curacy in the diocese of Manchester. Value, £190. Patron, L. Rawstorne, Esq. The church was built in 1770, and is a good brick structure. There are chapels for Wesleyans and Primitive Methodists, a free grammar school, and charities £29.The sub-district comprises the parishes of Penwortham and Hoole. Acres, 14,240. Pop., 6,620. Houses, 1,204.
GB Historical GIS / University of Portsmouth, History of Longton, in South Ribble and Lancashire | Map and description, A Vision of Britain through Time.
Date accessed: 29th March 2017
Click here for more detailed advice on finding places within A Vision of Britain through Time , and maybe some references to other places called " Longton ".