If you have a closer look to the data you will find out, that nearly all emigrants who have settled in Blackford. Co. were emanating from   Wankheim.  The only exception was Barbara Maier,  who was born in Maehringen but married to Johannes Schwartzkopf from Wankheim.  Interesting as well is that all of the emigrants left Germany after 1850. Some of them have first settled in  Crawford Co., and then moved on to Indiana. A further stream resulted in the first generation of emigrants who originally settled in Crawford Co. The reason for this behaviour must have been that the land price in Indiana was much cheaper than in Ohio and also Blackford Co. was easier to reach than in the time before.

I was lucky that I could build out an intensive relationship to zu Blackford Co., because my close contact to the descendants of the brothers , Johann Friedrich and Johann Jacob Walker from Wankheim, who are distant relatives of mine.  The descendants of these two emigrants have been in Germany as well I was guest in Blackford Co. several times.