The History of Hendricks County (Chicago: Interstate Publishing, 1885)--Clay Township, pages 554-555
Milton E. Hadley is a representative of one of the most prominent pioneer families of Hendricks County, and is one of the oldest living natives of the county. He was born in Center Township in December, 1829, a son of Simon T. Hadley, the second Clerk of Hendricks County. He has lived in Clay Township since 1870 and owns a fine farm on section 32. He now resides in the village of Amo. His wife was Jane Phillips, daughter of John Phillips. They have no children, but have an adopted daughter--Sarah.