|James Brown Clay|
|Member of the U.S. House of Representatives
from Kentucky's 8th district
March 4, 1857 – March 4, 1859
|Preceded by||Alexander Keith Marshall|
|Succeeded by||William E. Simms|
|13th United States Ambassador to Portugal|
August 1, 1849 – July 19, 1850
|Preceded by||George Washington Hopkins|
|Succeeded by||Charles B. Haddock|
|Born||)November 9, 1817
|Died||January 26, 1864) (aged 46)
|Resting place||Lexington Cemetery|
|Spouse(s)||Susan Maria Jacob|
|Relations||Son of Henry Clay
Brother of Henry Clay, Jr. and John Morrison Clay
Nephew of James Brown
Grandfather of Susan Clay Sawitzky
|Alma mater||Transylvania University|
Born in Washington, D.C., while his father, Henry Clay, was serving in the United States Congress, James Brown Clay was named for the husband of his maternal aunt, James Brown. His brothers were Henry Clay, Jr. and John Morrison Clay. Clay attended a boys’ school associated with Kenyon College, Gambier, Ohio (founded by family friend Bishop Philander Chase). Later, Clay attended Transylvania University, Lexington, Kentucky. He worked at a countinghouse in Boston from 1832 to 1834 before studying law and being admitted to the bar. He practiced law with his father in Lexington, Kentucky. In 1843, Clay married Susan Maria Jacob, sister of a three-time mayor of Louisville, Kentucky, Charles Donald Jacob. The couple eventually had ten children.
Clay served as Chargé d'Affaires to Portugal from August 1, 1849, to July 19, 1850. He farmed in Missouri in 1851 and 1852 before returning to Lexington. Clay had been a lifelong member of the Whig Party — the party of his father. But when the Whig Party disintegrated following Henry Clay’s death, James B. Clay joined the Democratic Party. In fact, he was elected as a Democrat to the Thirty-fifth Congress (March 4, 1857 – March 4, 1859). Clay did not run for renomination in 1858 and declined an appointment by President James Buchanan to a mission to Germany. Clay served as a member of the Peace conference of 1861 held in Washington, D.C., an attempt to prevent the impending American Civil War. During the Civil War Clay supported the Confederacy and was commissioned to raise a regiment. His ill-health from tuberculosis prevented him from doing so. Clay died in Montreal, Canada, where he had gone for his health. He is interred at his family plot in Lexington Cemetery.
See also 
- Henry Clay
- Ashland (Henry Clay home)
- Clay family
- Henry Clay, Jr.
- Susan Clay Sawitzky
- Thomas Clay McDowell
- This article incorporates facts obtained from the public domain Biographical Directory of the United States Congress.
- On Clay's service as American chargé d'affaires to Portugal, see Sara B. Bearss, "Henry Clay and the American Claims against Portugal, 1850," Journal of the Early Republic 7 (Summer 1987): 167–80.
- James Brown Clay's official Congressional biography
- The Filson Historical Society
- Clay Family Papers at the Library of Congress
- Ashland, the Henry Clay Estate
- Allen, William B. (1872). A History of Kentucky: Embracing Gleanings, Reminiscences, Antiquities, Natural Curiosities, Statistics, and Biographical Sketches of Pioneers, Soldiers, Jurists, Lawyers, Statesmen, Divines, Mechanics, Farmers, Merchants, and Other Leading Men, of All Occupations and Pursuits. Bradley & Gilbert. pp. 270–271. Retrieved 2008-11-10.