In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Whitstone like this:
WHITSTONE, a hundred in the E of Somerset; containing 1 2 parishes. Acres, 31,499. Pop. in 1851, 11,883; in 1861, 12,030. Houses, 2,593.
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 Whitstone has changed, please see our redistricted information for the modern district of Mendip. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Whitstone and units named after it.
GB Historical GIS / University of Portsmouth, History of Whitstone, in Mendip and Somerset | Map and description, A Vision of Britain through Time.
Date accessed: 24th April 2014
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Whitstone".