Richard G. Dunlap, diplomat and secretary of the treasury during the Lamar administration, the son of Hugh and Susannah (Gilham) Dunlap, was the first white child born in Knoxville, Tennessee. After serving in the War of 1812 and the Seminole campaign in Florida in 1817, he represented Knox and Anderson counties in the Tennessee legislature from 1829 to 1831. He moved to Texas in 1837 and was appointed secretary of the treasury by President Mirabeau B. Lamar on December 14, 1838. From March 13, 1839, until April 20, 1840, he served as minister from Texas to the United States. He married Mary Louisa Winnon on July 1, 1840. He died in New Orleans on June 24, 1841.