in American National Biography Online
January 1999; p ublished online February 2000 .
Reference Entry. Subjects: US Politics; Diplomatic History; International Relations; Slavery and Abolition of Slavery; Law; Criminology and Criminal Justice. 1364 words.
Clay, Cassius Marcellus (19 October 1810–22 July 1903), antislavery politician and diplomat, was born in White Hall, Kentucky, the son of Green Clay, a land speculator, and Sally Lewis....