High Quality Content by WIKIPEDIA articles! Robert Perkins Letcher (February 10, 1788 – January 24, 1861) was a politician and lawyer from the US state of Kentucky. He served as a U.S. Representative, Minister to Mexico, and the 15th Governor of Kentucky. He also served in the Kentucky General Assembly where he was Speaker of the House in 1837 and 1838. A strong supporter of the Whig Party, he was a friend of Henry Clay and John J. Crittenden.