As in so many early transcribing of surnames, the surname Hartzog, was spelled many ways:Herzog, Hertzog, Hartsock to name a few.
Two of the most common ports of entry for the Hartzogs were Pennsylvania and South Carolina.A great German influence was in South Carolina before our Bernard Hartzog came to this land.Bernard and his young family's journey probably lasted from May to October, amid such hardships as no one is able to describe adequately.Our branch left Sandhausen, Germany and traveled up the Rhine River to Rotterdam, Holland, then boarded the ship, Cunliffe, and headed for the New World.They made land at Charles Town, SC in 1752.
The first line of descent as we know it at this time is, Henrich and Katharina HERTZOG of Sandhausen, Germany.Henrich was born circa 1660 and died before 1706.This couple had at least two sons, Johannes born 1680, and Hans Henrich.
Second generation: Hans Henrich HERTZOG born before 1695 in Sandhausen, Germany, died Oct 4, 1744.He married Nov 16, 1706 to Katharina KREYENBUHL who was born 1636 and died Feb 28, 1731.Their children were Johans Bernhard, Sara, Regina, Johann, Anna Margaretha, Hans Adam, Anna Katharina, and Joh Martin.
The folklore of Hartzogs being Jewish didn't come down our line, but I have heard of Hartzogs going into New York and the researchers say they were Jewish.Our branch were Reformed Lutherans who were escaping religious differences.