Hi...my name is Lydia Pennock. I've stopped by that town just to get my picture with the town name. All I know is that the town was named after a railroad man. There is also a Pennock Island at Ketchikan Alaska. Be sure to check out
www.pennock.ws and especially
www.primitivehall.org. Don't know if you are from the same "stock", but the history is facinating. My dad is Levis Pennock named after the "first mom", Mary Levis in the 1700's and my son also carries the name. Good luck with your search.