I was researching another Dawson family in that area of SC. But, this is notes I have on your line. Thomas Dawson was born at Lyme Regis, Dorsetshire, England on March 4, 1790. He suffered religious persecution for his Baptist beliefs and came to the U.S. ca 1816 - 1817. He married Mary Randal Lewis, b. at Burlington, N.J. on Nov 28, 1802 d. Pendleton, SC on April 22, 1872. They were married on August 10, 1822, at Valleytown Mission then in the Cherokee Nations. They had nine children. Thomas Dawson was a Baptist minister in Pendleton, S.C. I have more information; if you are interested just let me know.