July 1, 1823 -- Remembering John McLean of Ohio becomes  9th US Postmaster General of the US. McLean was appointed by President Monroe on June 26, but not confirmed by US Senate until December 9. He resigned from from the Supreme Court of Ohio to accept the appointment. Under Monroe and President John Quincy Adams, McLean presided over a major expansion of the United States Postal Service. In 1829, President Andrew Jackson appointed McLean as an associate justice of the United States Supreme Court. Didja know? McLean was born in Morris County, New Jersey. After living in a succession of frontier towns, namely Morgantown, Virginia, Nicholasville, Kentucky, and Maysville, Kentucky, his family settled in Ridgeville, Warren County, Ohio in 1797. There, McLean received his formal education and developed his interest in law, later graduating from Harvard in 1806. It can be argued that his anti-slavery views also began to form at this time, given his upbringing as an evangelical Methodist with a focus on egalitarianism. His brother William was also a successful Ohio politician.