Thank you for your interest in Kenreich geneology. You asked several questions. Here are some answers. I can confirm that the stone house next to the cemetary where Caspar is buried was indeed Caspar's residence. From my research, I learned that the cemetary was once part of the lot that Caspar owned. A Lutheran church, initially known as the Kenreich Church (and later the Dutch Ridge Church) previously stood adjacent to the cementary. Over time, the church fell into disrepair and was demolished.
I do not know Caspar's line of work, but I would guess that he was a farmer of sorts. His son Michael, though, was a wagon-maker.
Your question about why Caspar came to Ohio is the $100,000 question. I don't know the answer to this. Since Ohio became a state in 1803, I imagine that Ohio seemed like a "land of opportunity" in the early 19th century for folks back east, in Lancaster County, PA. I am still looking for clues for why Caspar and his family chose Ohio instead of other states.