In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Blackmanstone like this:
BLACKMANSTONE, a parish in Romney-Marsh district, Kent; 5 miles ESE of Ham-street r. station. Post-stown, New Romney. Acres, 293. Real property, £825. Pop., 8. Houses, 2. The living is a rectory in the diocese of Canterbury. Value, £44. Patron, the Archbishop.
GB Historical GIS / University of Portsmouth, History of Blackmanstone, in Shepway and Kent | Map and description, A Vision of Britain through Time.
Date accessed: 30th March 2017
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