I have seen published that John's father was Peter Winkler and there was a Peter Winkler who purchased land in Morgan Co., IN about the same time that John Wingler purchased land, but they are not near each other in the county. I've also seen family trees that claim John is the son of Leonard Wingler. It is rumored John came to Washington Co., IN with his uncle Frederick Winkler's family. Frederick also had a son named John who married and lived his life in Washington Co., IN. The two Johns were within one year's age of each other. Does anyone have undeniable proof of John Wingler/Winkler's (who settled and died in Morgan Co., IN) heritage.