The 1st generation I have is a John Henry b.1788 - 1865 supposedly of Irish descent, married Susannah Day in Rhea Co. Tn. Their children Susan,Joseph,Ligeard,Zillah,NancyM, Cynthia Ann, Elisah N. Do any of these names ring a bell? Are any of your Irish Henry's from Tn.? My email address is Oklaferri@aol.com
1778 seems almost early enough to have been on a passenger list somewhere, but I have no access to them right now.