William Irwin Petitt was born March 24, 1827 in Chautauqua County, New York. He is the son of Noah and Betsey Petitt. He was last know to be in northern Illinois in 1850 census. He was also named in the Estate sale of his father in 1862. He would go by his first and/or his middle name. I have found his middle named spelled two ways, Erwin and Irwin. Any information on this individual would be great. Thank You for your time.