In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Knowsthorpe like this:
KNOSTROP, a village in the township and parish of Leeds, W. R. Yorkshire; on the river Aire, 1½ mile SE of Leeds. Knostrop Hall, an ancient mansion, is the seat of E. J. Maude, Esq. Market gardens and coal mines are in the neighbourhood.
Additional information about this locality is available for Leeds
GB Historical GIS / University of Portsmouth, History of Knowsthorpe, in Leeds and West Riding | Map and description, A Vision of Britain through Time.
Date accessed: 29th 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 " Knowsthorpe ".