Dear Pinetree
If you get the chance to check the Sutton on Forest registers for Gilbank entries it would be a great help. Also I suppose the marriage entry of John Gilbank and Abigail Davidson at St Sampson, York on 29/11/1795 might give a bit more information. I've been researching this family for years so there's no urgency!
One of John's sons put his father's ocupation down as soldier on his marriage certificate and I'd be interested to know whether he ever was in the army. He seems to have been quite a tough character. In 1820 he was arrested for poaching and shipped out to Australia. He survived a seven year sentence in Tasmania and eventually returned to York.