In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Longburton like this:
LONGBURTON, a parish, with a village, in Sherborne district, Dorset; 2½ miles S by E of Sherlborne r. station. Post town, Sherborne. Acres, 1,025. Real property, £2,110. Pop., 336. Houses, 82. The manor belongs to J. S. Drax, Esq. Limestone for building is quarried; and the making of gloves is carried on. The living is a vicarage, united with the vicarage of Holnest, in the diocese of Salisbury. Value, £275.* Patron,Cosens, Esq. The church contains monuments of the Fitzjames family. There are chapels for Wesleyans and Primitive Methodists, and a national school.
GB Historical GIS / University of Portsmouth, History of Longburton in West Dorset | Map and description, A Vision of Britain through Time.
Date accessed: 23rd 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 " Longburton ".