In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Brampton Ash like this:
BRAMPTON, or Brampton-Ash, a parish in the district of Market-Harborough and county of Northampton; near the Market-Harborough and Bedford railway, 4 miles E by S of Market-Harborough. Post Town, Wilbarston, under Rugby. Acres, 2,259. Real property, £3,299. Pop., 107. Houses, 24. The property is divided among a few. The living is a rectory in the diocese of Peterborough. Value, £400.* Patron, Earl Spencer. The church has two brasses, and is good. Charities, £6. Bishop Cumberland was some time rector.
GB Historical GIS / University of Portsmouth, History of Brampton Ash, in Kettering and Northamptonshire | Map and description, A Vision of Britain through Time.
Date accessed: 27th April 2017
Click here for more detailed advice on finding places within A Vision of Britain through Time , and maybe some references to other places called " Brampton Ash ".