It's driving me a bit loopy but it might turn out to be quite interesting though, as if Charles Gordon of St Bridget is indeed Ann's father, it would mean I'm descended from the infamous Jacobean "Old Glenbucket", John Gordon the Laird of Glenbucket who sold his (relatively small) castle to gain funds to raise an army. After Culloden, he went back to his farm (St Bridget's at Tomintoul) and hid, while the Duke Of Cumberland's men searched for him in order to hang him. He was already an old man but he escaped and died in France as he couldn't come home. All his remaining land / assets were taken but they left his family with St Bridget's, which I think they had to rent from the Duke of Gordon.
His eldest son John stayed at the farm and died in 1753
John's eldest son William took it over, followed by William's eldest son John and John's eldest son Charles, who might be Ann's father (looks like he might not have married her mother though!)