Looks not unlike many a German-inspired church house that one may once have seen in this part of the country, those build by German Baptist (or other Brethren) coming from PA, or Mennonites from PA, Ohio, and some directly from Switzerland.
In these frames, the cross ties like you see there are not mortised into the plates, but rather are dropped in from above with a dovetail joint. A very common arrangement in the southern part of the German speaking world for single story buildings.
In these buildings, the cross ties always join into the plates, never the posts. Actually, the only thing that ever joins into the posts in most southern German framing are the horizontal wall girts.
What can you tell me about the ethnic makeup of the peoples of this area? Was there ever a Mennonite or Brethren/German Baptist/Dunkard settlement?