Hi
If John and William are brothers, we are related! William Owen was my GG Grandfather.
William Owens daughter (known as Anne Jane) married Isaiah ,not Isaac, Davies. He became the landlord of "The Kings Head" which was previously the inn of William Owen. Together they designed and built St Georges Hotel having been given the plot of land on the sea front by the agent of Lord Mostyn in lieu of an unpaid bar debt.
I would be really interested in anything else you could tell me.