I've been reading some of the queries posted here, and I can now assure you that the Drury Fletcher that Sue L. Wright, her husband Jack (my brother), and I are seeking is the one. "He enlisted on 26 August 1775 in the Volunteer Company of Horse of St. Mark's Parish under Capt. Matthew Singleton. S.C.H.&G.,I,185". This is a direct quote from a small book that I found in my small town library - the genealogy dept. is small, too. The book is titled "Roster of South Carolina Patriots in the American Revolution" by Bobby Gilmer Moss. There are several other Fletchers mentioned, but I havn't had time to look for them anywhere else. I hope this isn't too late to be helpful to someone.
Shirley J.Everett