I am from Arkansas, descended from Girtman family, which if you go back far enough that it becomes Gartman, you find a German/Swiss immigrant named John James Hans Gartman married Teter Dieter, daughter of George Dieter/Teeter. She was born either 1730 or 40. . She died in Lexington District, SC, some sources say 1822. It seems strange, that just a few generations down, her Gartman/Girtman descendents come to Arkansas, and so did your family with similar name...