Thank you for your reply.
I wish I could think of something new to search. I have been working on this for over thirty years.
There are a lot of people working on the "other" Murdoch McDuffie in Georgia. Some have guessed a connection, but so far no proof.
The other Murdoch McDuffie married Abigail Curry, and his family is well documented.
My Murdoch McDuffie married Margaret Chappelear in Franklin County Georgia about 1826. They moved to Cherokee Co., Al. After his first wife died he married Margaret J Hollice Moore. All of the children were by Margaret Chappelear.
Murdoch McDuffie was born c1796 and died 2 May 1883 Etowah Co., Al. No grave site has been found. The census says he was born in NC. There are a few McDuffies with a son old enough to be my Murdoch, but so far I cannot prove him with a family.
I hope someday a new person will come along and perhaps have the needed documents hidden away in his or her attic. Is that a dream?
What I am after is finding his father and mother.