Unfortunately Chris Bliss-Jones is no longer a member, so doubt if you will receive a reply. I am at MichaelJFBliss@btinternet.com
So we need to find a John Bliss born about 1755 other than in Margate. The ancient centres for the Bliss name are Northamptonshire, Gloucestershire and Norfolk. As Gloucestershire seems to feature in the family history, we can start there. Will do some research in our records and come back to you soon.
Many thanks for all this information