Hi Nicola,
Here is some more information I found. You have probably noticed that certain forenames are used regularly, so with this in mind I continued my research. I found a newspaper article from the Westmorland Gazette 15/3/1890 in which it mentions the transfer of ownership and refurbishment of the famous Inn, The Mortal Man. It was owned by Isaac Walker and then his widow when he died. It was purchased by Mr C P Banks of Kendal. It was erected in 1689 by James Cookson and originally known as the White House. In the Autumn of 1889 a foundation stone was laid by Adam Walker a descendant of James Cookson. Isaac and Adam were brothers and sons of Myles and Mary Walker (nee Cookson). Robert Cookson (smith) named his first son James and records show that James Cookson had a son Robert 1689 in Troutbeck and his mother was Margaret (nee Hutchinson).
I requested the Will of James Cookson waller (builder) Townhead in Troutbeck 20/1/1749 he annulled previous wills. He wants to be buried in Dent. He gives his estate of houses and lands lying and being within the township of Troutbeck to his grand son James Dixon with yearly rent of six shillings. James Cookson wants legacies paying to his daughter Margaret Mackereth, grandchildren George Dixon, Jane Dixon, Ann Dixon, Mary Dixon, Paul Dixon, John Dixon. He appoints James Dixon as his sole executor of his last will and testament. He appoints William Cookson of the Broadgate in Hugill Butcher and George Birkett of the Highground in Troutbeck and gives them five shillings. James Dixon presents himself at the solicitors on 15/10/1750.
Of interest I found a baptism for Mary Cookson 17/7/1698 and a marriage to John Dixon 1/2/1721 in Troutbeck. A baptism for Margaret Cookson 21/1/1703 and a marriage to William Mackereth 6/5/1731 Troutbeck. Coincidentally, it was a William Mackereth who put together the Inventory for Jennet Cookson's (widow) assets on her death.
It gets more complicated getting the right connections the further you go back.