In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Hammoon like this:
HAMMOON, a parish in Sturminster district, Dorset; on the river Stour; 2 miles E of Sturminster Newton r. station. Post town, Sturminster Newton, under Blandford. Acres, 677. Real property, with Manston, £4, 585. Rated property of H. alone, £1, 394. Pop., 74. Houses, 17. The property is divided among a few. The living is a rectory in the diocese of Salisbury. Value, £233.* Patron, G. Meech, Esq. The church is old, but good.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Hammoon has changed, please see our redistricted information for the modern district of North Dorset. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Hammoon and units named after it.
GB Historical GIS / University of Portsmouth, History of Hammoon in North Dorset | Map and description, A Vision of Britain through Time.
Date accessed: 04th October 2015
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Hammoon".