from The American Heritage® Dictionary of the English Language, 4th Edition
- Clay 1, Cassius Marcellus 1810-1903. American abolitionist and public official who was minister to Russia (1861-1862 and 1863-1869).
- Clay 2, Cassius Marcellus See Muhammad Ali.
- Clay, Henry Known as "the Great Compromiser.” 1777-1852. American politician who pushed the Missouri Compromise through the U.S. House of Representatives (1820) in an effort to reconcile free and slave states.
- Clay, Lucius DuBignon 1897-1978. American army officer who commanded U.S. forces in Germany (1945-1949) and oversaw the Berlin airlift (1948).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A surname.
- proper n. A male given name transferred from the surname.
- proper n. A diminutive of the male given name Clayton.
From a Middle English occupational name for a clay worker, or a habitational name, from Old English clǣġ ("clay"). (Wiktionary)