In 1887, John Bartholomew's Gazetteer of the British Isles described Kensington like this:
Kensington.-- parl. bor. and par. with ry. sta., Middlesex, in W. of London, 2190 ac., pop. 163,151; contains the South Kensington Museum, the gardens of the Horticultural Society, the Kensington Gardens (300 acres), which extend to Hyde Park, and Kensington Palace (the property of the Crown since the time of William III.), in which Queen Victoria was born. Kensington parl. bor. is divided into 2 divisions - viz., North and South-1 member for each division; it was made a parl. bor. in 1885.
GB Historical GIS / University of Portsmouth, History of Kensington, in Kensington and Chelsea and Middlesex | Map and description, A Vision of Britain through Time.
Date accessed: 30th March 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 " Kensington ".