Robert, there were two William Allens in St. Helena Parish very early. Some of us are trying to distinguish them now. My William Allen was never in SC, as far as I know. He was in Georgia briefly before moving to Tennessee. He moved to the Wilkinson Co. MS area by 1805. I think your William was in St. Helena first, in the Southern part, and mine lived in the Northern part. One signed a petition in the MS Territory in 1800, and I don't believe that one is mine. Do you know when yours left SC?