Looking for information on Forresters who lived in the Johnson County, Mountain City area of Tennessee and Watauga County North Carolina.

My Gr-gr-gr grandfather was John Forrester (1780-1848) married to Atha McCoy. John and Atha had 9 known children:

William B. married Mary Hollingsworth
Mary Elizabeth married Daniel Snider
Rebecca married William Tester
Samuel married Mary Davis
Thomas married Mary Proffit
Andrew married Phoebe Proffit
Louisa married Pleasant Proffit
John Jr. married Nancy E. Dunn
Saray Jane married John R. Taylor

Any information know about John and Atha would be greatly appreciated.