I am a descendant of Hugh Hanna (1759-1842) who is believed to have been one of the last survivors who fought with General Francis Marion in the Revolution in SC.
Below is an excerpt from papers from an anonymous author citing the "History of South Carolina", American Historical Association, Inc., New York, NY, 1934 - which has provided the following information regarding Hugh Hanna:
Hugh came south with General Green, joined Marion's Brigade, and was wounded in battle. The bullet extracted was preserved by descendants. He was a large land and slave owner and farmer on Lynches Lake. He erected the first water wheel for operation of a rice and grain mill.
The Hugh mentioned in the above account is the common ancestor of most of the Hanna Family in the region around Johnsonville, SC and Vox, SC.
This may tie back or be the same Hugh mentioned in this original post, but we have no definitive records on this one way or the other of who Hugh's parents were or who he might be related to until one of our male line Hanna cousins participates in a DNA study to see if there's a match with other Hanna families.
I've attached Hugh Hanna's obit from the Winyah Observer, 1842.