I have quite a bit of info for Jacob as I first thought he was one of my ancestors that I am searching from the same area. I live in Prince Edward Island and grew up not far from Grand River, Lot 56 where my Taylor also settled.
However, I'm wondering if there were two Jacob Taylors. I have Muster Roll of 1783 that states Jacob was a refugee from South Carolina, age 22 which makes him much younger than this Jacob. Also wondering where the 'Taylor Paper' you mentioned are located? Jacob and Nancy had at least 10 children.
I remember seeing information about Jacob Taylor who was a soldier but he was much older than the Jacob of PEI so I didn't record any of the information. I believe it was on a site about the American Revolution.
Hope to hear from you.