US Congressman and Lawyer. He was a United States Representative from the State of Missouri. He was born one of five children to Andrew King (1780-), and his wife Sarah Caldwell King (1785-1845), in Greenbrier County, Virginia, now in the State of West Virginia, on March 21, 1812. He was educated locally and attended the local common public schools. Following his public education, he studied law, was admitted to the bar, and commenced his practice of law in Saint Charles, Missouri, shortly thereafter. He then became interested in politics and served a term as a Member of the Missouri State Senate representing the 1st District from 1846 to 1847. He also served as a Member of the Missouri State House of Representatives from St. Charles County, Missouri, from 1858 to 1859, and as Judge of the Circuit Court for the Sixteenth Judicial District of the State of Missouri from 1859 to 1864. He then decided to run for a seat in the United States Congress and was elected to succeed the outgoing United States Representative David Patterson Dyer (1838-1924), on March 4, 1871, A Member of the Democratic Party, he then served Missouri's 9th District (Forty-Second Congress), in the United States House of Representatives from March 4, 1871, to March 3, 1873. While serving in the United States Congress, he was notably the first congressperson to propose a nationwide ban on interracial marriage in the United States of America, which he did in 1871. He also proposed an amendment to the United States Constitution to ban interracial marriage because he feared that the Fourteenth Amendment, ratified in 1868 to give equal civil rights to the emancipated ex-slaves (aka the Freedmen), as part of the process of Reconstruction, would render laws against interracial marriage unconstitutional. He retired from the United States Congress following his term in 1873. In total, he was elected in 1870 and retired in 1873. Following his term in the United States Congress, he was succeeded in office by the incoming United States Representative and the infamous hanging judge Isaac Charles Parker (1838-1896), on March 4, 1873. After leaving the United States Congress, he resumed his practice of law in Saint Charles, Missouri, until his death on November 18, 1895, at the age of 83. He was also a slave owner. He passed away following a long illness and general debility at the home of an acquaintance in Jefferson City, Missouri, on November 18, 1895, at the age of 83. Following his death, his funeral services were held in Jefferson City, Missouri, and he was buried in Oak Grove Cemetery in Saint Charles, Missouri. He was married to Narcissa E. Basye King (1826-1902), in Cole, Missouri, on June 9, 1847, and the couple had three children together, Francis Coalter King (1848-1880), Sallie B. King (1851-1852), and Narcissa King (1855-). His wife Narcissa survived him, passing away on February 14, 1902, at the age of 75, and she is also buried in Oak Grove Cemetery in Saint Charles, Missouri.