The name Seaborn Bruce (also spelled Seaburn and Seborn) appears in several documents between 1811 and 1817 in Lincoln Co. TN. I believe he is a brother of Arnold, Joel, and Wilson Bruce who were also in Lincoln Co. at this time. Arnold died in Lincoln Co. in 1817. Joel died there in 1829. Seaborn and Wilson appear in the 1820 Census of Limestone Co., AL which borders Lincoln Co. I have seen Seaborn's name on land sales in Lincoln Co. as late as 1832. I hope this will be of some aid to you.