There is at least one other possibility: Familysearch has a James Burt, b 1809 Fordington, son of Richard and Ann Burt (although I couldn't see it doing a quick search of the originals on Ancestry). Richard and Ann married in 1798 and had Ann (1799), Sarah (1803), Martha (1804), George (1806), Sarah (1812) and possibly others.
One of the witnesses on James' marriage was George Burt. Given that Richard died in 1824 (age 55), George would have been a logical witness at the wedding as he was James' eldest (only) brother.
There is an Ann, 67, living in Fordington in 1841.
Nothing is proved, of course; but it is another avenue.
Richard