It would be worth looking on CASCAT for documents relating to the Fothergill family - the site is down at the moment (am Sunday).
There is a huge number of early Fothergill wills (Wills proved in the consistory court of Carlisle 1661-1750). Too many to mention here but the following mentioning Deepgill
Futhergill Margt, Kirkby Stephen (Mallerstang, Deepgill) [We] 1689 W
John Fothergill, Kirkby Stephen (Mallerstang, Deepgill) [We] 1661 W [24]
John, Kirkby Stephen (Mallerstang) [We] 1740 AI [66r]
The only James:
Jas Fothergill, Ravenstonedale (Brownber) [We] 1729 WI Rav