Jonathan Dayton (b. October 16, 1760; d. October 9, 1824) was the fourth Speaker of the United States House of Representatives. He was also a delegate to the Federal Constitutional Convention in 1787 and a signer of the United States Constitution.
Dayton was born in Elizabethtown (now Elizabeth), New Jersey, on October 16, 1760, the son of Elias Dayton. He graduated from the College of New Jersey (now Princeton University) in 1776; following a course of legal study, he was admitted to the bar. 
During the Revolutionary War, Dayton served in the Third and later the Second New Jersey Regiment of the Continental Army from 1776-1783, serving as paymaster of his father's unit and later attaining the rank of captain. He was taken prisoner at Elizabethtown, N.J., and later exchanged.  
Dayton was a delegate to the Constitutional Convention in 1787, and signed the United States Constitution. Other members of the New Jersey delegation to the Convention were William Houston, William Livingston, William Paterson, and David Brearley.
Continental Congress and Later Political Service
Dayton served as a New Jersey delegate to the Continental Congress from 1787-1788. He was elected to the Second and to the three succeeding Congresses, serving from March 4, 1791-March 3, 1799. During this time, he also held the position of Speaker of the House of Representatives for the Fourth and Fifth Congresses. In 1798, rather than seek re-election, he chose to seek election to the Senate, running as a Federalist. He was successfully elected to the United States Senate and served from March 4, 1799, to March 3, 1805.
Controversy and Accusations
Dayton died in Elizabethtown in 1824 and was interred in a vault in St. John's Churchyard.
- The youngest person to sign the United States Constitution.
- The city of Dayton, Ohio is named for him.