Henry Lowther was an English courtier and landowner who succeeded to the Viscountcy of Lonsdale in 1713 and owned the whole Manor of Wensleydale by 1717.

The manor source calls him Lord Lonsdale; identification with Henry Lowther, 3rd Viscount Lonsdale, is supported by the date and title chronology.

Research sources:
- Recovery Rolls of Yorkshire, Trinity 3 George I, rot. 64, and related local history, as cited in the Yorkshire Dales National Park archaeological survey and the Northern Mine Research Society account. — https://www.yorkshiredales.org.uk/wp-content/uploads/sites/13/2020/02/Mitcham-2019-Community-archaeology-surveys-and-excavation-at-Floshes-Hill.pdf
- Wikipedia biographical reference — https://en.wikipedia.org/wiki/Henry_Lowther,_3rd_Viscount_Lonsdale