I had actually posted this reply before the pithy one above but it disappeared.
My wife is a descendant of great but unrecognized American hero General Philemon Thomas. GPT married Mary Polly Craig and they had two daughters, Frances and Elizabeth. Then he married Fanny Hawkins and had two daughters Mary and Fanny.
His father was Richard Thomas II (1731-1798) and his grandfather was Richard Thomas (1680-1748).
By chance I was able to trace GPT's ancestors back to Wales. The tree is posted on Rootsweb as thomas wales.