Amazing isn't it! Today, I started looking up my Abbot connections in Beer, Devon following some new information. Then saw your request.
It would appear that your George Abbott (bapt 4 July 1802 Seaton & Beer)is a brother to my Mary Abbott(bapt 18 Nov 1804 Seaton & Beer)
Their parents were John Abbott & Ann (Nanny)????. I'm also informed that this Ann was a Potter, as one of her grandchildren has the name Potter as a middle name, but so far I can not confirm this. I haven't found their marriage yet. Hopefully, my new contact will be able to expand on his sources