John Nelson was an American lawyer and statesman who served as the Attorney General of the United States from 1843 to 1845 under President John Tyler. He served as the first United States Chargé d'Affaires to the Kingdom of the Two Sicilies from 1831 to 1832 and as the U.S. representative for Maryland's 4th district from 1821 to 1823.

John Young Mason was a United States representative from Virginia, the 16th and 18th United States Secretary of the Navy, the 18th Attorney General of the United States, United States Minister to France and a United States district judge of the United States District Court for the Eastern District of Virginia.