Thomas Mifflin (b. January 10, 1744; d. January 20, 1800) was the first Governor of Pennsylvania. A member of the Continental Congress, he also served as the fifth president of that body. Mifflin attended the 1787 Constitutional Convention and signed the United States Constitution.
Following the second Battle of Lexington, Mifflin focused on recruiting and training troops for the Continental Army. His passion and patriotism, coupled with his great natural ability, led to rapid advancement. On June 23, 1775, Mifflin was appointed as General George Washington's aide-de-camp; later that same year, on August 14, he was appointed the Continental Army's first Quartermaster General. He served in this position for the remainder of the war, but refused to lead from the rear; he was present at the battles of Trenton, Princeton and assisted in the defense of Philadelphia. Mifflin finally resigned his comission and post on August 17, 1778. 
Mifflin served twice in the Continental Congress. He was first appointed in 1774, and served through 1175, leaving to fight in the Revolutionary War. He again served from 1782-1784, and was the President of the Continental Congress in 1783. During his tenure as President, he presided over the ratification of the Treaty of Paris, officially ending the Revolutionary War. 
Later Political Service
Following his time in Congress, Mifflin returned to politics in his home state of Pennsylvania. He held numerous positions, ultimately serving as the first Governor of Pennsylvania--a position he held from 1790-1799.
Thomas Mifflin died in Lancaster, Pennsylvania, on January 20, 1800; he was buried in the front yard of Trinity Lutheran Church.