In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Knook like this:
KNOOK, a parish, with a village, in Warminster district, Wilts; on the river Wiley, the Old Ditch way, and the Somerset and Weymouth railway, 1 mile SE of Heytesbury r. station. Post town, Heytesbury, under Bath. Acres, 1, 440. Real property, £1, 342. Pop., 208. Houses, 46. The property belongs chiefly to Lord Heytesbury. ...
Knook Castle is an ancient single ditched entrenchment, of about 2 acres; is supposed to have been originally a British village, and afterwards a Roman summer camp; and has yielded Roman coins. Traces of another ancient British village are to the N. " The site of these villages, '' says Sir R.Hoare, " is decidedly marked by great cavities and a black soil; and the attentive eye may easily trace out the lines of houses and the streets, or rather the hollow ways, conducting to them. Numerous tumuli and barrows are in the neighbourhood. '' The living is a p. curacy, annexed to the p. curacy of Heytesbury, in the diocese of Salisbury. The church, in Aug., 1866 was about to be repaired
GB Historical GIS / University of Portsmouth, History of Knook in West Wiltshire | Map and description, A Vision of Britain through Time.
Date accessed: 23rd March 2017
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