Charles Thomson (November 29, 1729 – August 16, 1824) was an Irish-born Patriot leader in Philadelphia during the American Revolution, and the secretary of the Continental Congress (1774–1789) throughout its existence.
Extracted from PDF version of Creating the Great Seal poster, part of a U.S. Diplomacy Center (State Department) exhibition on the 225th anniversary of the Great Seal. Direct PDF URL [3] (18MB)