Mifflin, Thomas (1744-1800), represented Pennsylvania at the Constitutional Convention of 1787 and signed the Constitution of the United States. Mifflin played only a minor role at the convention, seldom joining in debates. But he was highly popular in Pennsylvania and served the state throughout his life.
Mifflin was born on Jan. 10, 1744, in Philadelphia of Quaker parents. He was elected to the Pennsylvania Assembly in 1772 and became a member of the First Continental Congress in 1774. After the Revolutionary War in America began in 1775, he joined the army and soon became quartermaster general of General George Washington’s troops. Mifflin resigned from his post in 1777. About the same time, he became involved in a plot to remove Washington as commander in chief. Mifflin then returned to the Pennsylvania Assembly, where he favored the interests of business. He served in the Congress of the Confederation from 1782 to 1784 and as chief executive of Pennsylvania from 1788 to 1799. Mifflin died on Jan. 20, 1800.