Hi, Frances! I "met" you through RubyAnn Thompson Darnell and my sister, Patti Perkins Darnell several years ago.
Just wanted to add that my father-in-law's family (Sylvester and Syerena Perry Caplinger in TX) thought Caplinger was an Irish name, too. Not so -- we have proven that it is German. Also, I went to Wilson Co, TN several years ago because I think that is where my husband's line came from before they mover to Caplinger Mills, MO. All of the relatives that were left there now spell their name "CAPLEANOR". I guess that means they were pronouncing "Caplinger" with a hard "g" instead of a soft "g" ( a "j" sound, like Henry Kissinger) and gradually changed the pronunciation and spelling.
Also, I worked once with a Tim Caplinger whose family was from Arkansas, but he thought they were from a brewery family in St Louis at some point. He also said there was a tradition that they were related to our Caplinger Mills, MO group somehow, too. Sorry I don't know any more details -- he quit work the day I started that job!