When I was a boy, in the 1930s and 1940s, living near Cresco, Iowa, there was a Drollinger Hardware store there. Today, in the (Oxford) Dictionary of American Family Names, I read that the name "Drollinger" came from its origin in the "Tyrol" of Austria.
Alfons Helfrich, a distant relative of mine in Germany, once published a history of the town of Fehrbach, south of Kaiserslautern. It was depopulated by the 30-Years War, (1618-48), and repopulated by people from the Tyrol and from the area of Amiens, in the French Province of Picardy. I wonder if some or even all of the Drollingers in the US come from that Fehrbach community.
The above mentioned Dictionary is also helpful for some French ancestors of mine, namely the Raquet Family. It says that "Raquet" is probably a diminutive of "Raque," a word that, in Old Picard, means a "marsh," "slough" or "fen." My Raquet ancestors must have lived near a small wetland area near Amiens. However, it may not exist today, because many of these have been drained.