Where are my Kemmler’s from?

My research has started with my hometown Wankheim and the surrounding towns like Maehringen, Jettenburg, Immenhausen, Kusterdingen (the Haerten area), Stockach, Betzingen, Reicheneck, Pfullingen, Ohmenhausen, Bronnweiler, Goenningen, Undingen, Gomaringen, Hinterweiler, Nehren, Moessingen and Dusslingen in Germany. All these towns are located between or in the surrounding of the old university of Tuebingen and the industrial of Reutlingen in the state of Baden-Wuerttemberg in the former Kingdom of Wuerttemberg.

Over time I have expanded the search for other places like Döffingen, Ebingen, Erbstetten,  Kirchberg an der Murr, Magststadt, Maichingen, Malsmheim, Marschalkenzimmern, Oberesslingen, Reichenbach an der Fils and Renningen.