OVERVIEW:

FULL NAME:
John Middleton Clayton

BORN:
July 24, 1796
Dagsboro, Delaware

DIED:
November 9, 1856 (age 60)
Dover, Delaware

EDUCATION:
Yale University (BA, 1815)
Litchfield Law School

POLITICAL PARTY:
Federalist Party (Before 1824)
National Republican (Before 1834)
Whig (1824–1854)
American (1854–1856)

HIGHLIGHTS: 
1819:
Admitted to the Bar,
Began Practicing Law in Dover, Delaware
1824:
Member of the Delaware House of Representatives
1826-1828:
Secretary of State of Delaware 
1829-1836:
U.S. Senator from Delaware,
Anti-Jacksonian
1837-1839:
Chief Justice of Delaware
1845-1849:
U.S. Senator from Delaware,
Whig
1849-1850:
U.S. Secretary of State,
Negotiated Clayton-Bulwer Treaty with Great Britain 
1853-1856:
U.S. Senator from Delaware 
Whig/ Opposition Party 

RESOURCES:
Biographical Directory of Congress
Department of State
Litchfield Historical Society
Architect of the Capitol
Wikipedia
Memoir of John M. Clayton (1882)