When Peter Witten was born on 21 June 1786, in Wheeling, Ohio, Virginia, United States, his father, Phillip W. Witten, was 39 and his mother, Ruth Dickerson, was 37. He married Rachel Bowen on 20 January 1807, in Wittens, Jackson Township, Monroe, Ohio, United States. They were the parents of at least 6 sons and 9 daughters. He lived in Jackson Township, Monroe, Ohio, United States for about 30 years. He died on 22 June 1855, in Wittens, Jackson Township, Monroe, Ohio, United States, at the age of 69, and was buried in Witten Cemetery, Jackson Township, Monroe, Ohio, United States.