U.S. Congressman. Robert Blair Campbell served several terms in the United States House of Representatives along with other public offices. Born the older brother of U.S. Congressman John Campbell, he graduated from South Carolina College in 1809, engaged in agricultural pursuits and served as a captain in the South Carolina Militia in 1814. After being a failed candidate for the United States Congress in 1820, he served in the South Carolina State Senate from 1821 to 1823. In 1823, he was elected as a Jacksonian Republican to the Eighteenth Congress, serving until 1825. After his term, he returned to the South Carolina State Senate in 1830, yet was elected as a Nullifier to the Twenty-third United States Congress to fill the vacancy caused by the death of Representative Thomas B. Singleton, and reelected as a Nullifier to the Twenty-fourth Congress, serving 1834 to 1837. The Nullifier Political Party was part of the states' rights group, which supported the right to enable state governments to nullify federal laws within their borders. The Nullifiers were absorbed into the Democratic Party in 1839. At that point, his brother, John, succeeded him in the United States Congress. During the nullification movement, he was commissioned as a Brigadier General of South Carolina troops in 1833. He relocated to Lowndes County in central Alabama in 1840 and became a member of the Alabama State House of Representatives the same year. In 1842, he was appointed consul at Havana, Cuba, serving until 1850, when he moved to San Antonio in west Texas in 1853 and was appointed on March 16, 1853 as commissioner for the United States to aid in the settlement of the disputed boundary line between Texas and Mexico. His last public office was as United States consul at London, England from 1854 to March of 1861. At that point, he was recalled to the United States, which was in the dawn of the American Civil War. With failing health, he retired to Ealing in west London and died there the next year. He was buried at St. Mary Abbots Churchyard Cemetery in London but has an upright cenotaph marker with a bronze relief portrait on American soil in the Vicksburg National Military Park, which includes the Vicksburg National Cemetery in Mississippi. In 1972 the Marlboro County Historic Preservation Commission erected a South Carolina historical marker for him and his brother in the city of Blenheim at the corner of Main and High Streets.