In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Heywood like this:
HEYWOOD, a chapelry in Westbury parish, Wilts; near the Somerset and Weymouth railway, and near Salisbury plain and the boundary with Somerset, 1 mile N of Westbury. It was constituted in 1849; and its post town is Westbury. Rated property, £3, 179. Pop. 516. Houses, 119. The property is divided among a few. Heywood House was built by the Leys, in the time of James I.; and passed to the Phippses. There is a mineral spring. The living is a vicarage in the diocese of Salisbury. Value, £300.* Patron, H. G. G. Ludlow, Esq. The church is very good..
GB Historical GIS / University of Portsmouth, History of Heywood in West Wiltshire | Map and description, A Vision of Britain through Time.
Date accessed: 27th April 2017
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