I have just begun trying to research my family, and I would be very interested in the genealogical tree you mention, as well as the official coat of arms.
My name is Charles Wempe, and I was born in Illinois.My father is also Charles, and he was born in Aviston, Illinois.His father was Henry Hermann Wempe (b. 1883) in Aviston.His father was Hermann Wempe (b. 1852) in Aviston.I know that Hermann's parents were born in Germany, but that's all I know so far.
There seem to be a lot of Hermann, Henry, and Charles Wempes in Kentucky as well, but I don't know what, if any, relation they may be.