Where are your Carmans from? Mine lived in Greenville District (now Greenville and Spartanburg Counties) mostly in what is now Greer, SC. I'll be glad to share what I have if you are interested.
I am 99.99% certain that my Carman line are related to the Jefferson County, TN Carmans. The father of John Melton Carman is a Joseph Carman (born in TN). It just so happens that of the Jefferson County Carmans, Joseph is the only son that no one knows what happened to.
If my Carman line is indeed related to the Jefferson County Carmans, this Carman family descended from John Carman (b. 1606 in Bishops Stoke Parish, Hampshire, England). These Carmans founded Hempstead, Long Island, NY.
This is a well documented family. For more information, visit the web site at http://home.att.net/~carman_family_history/