MIFFLIN, Thomas (1744-1800), President of the Continental Congress. Partly printed document signed (“Thomas Mifflin”), as President, Annapolis, 28 November 1784. 1 page, folio (12 x 7 ¾), accomplished in manuscript, PRINTED ON VELLUM, large paper seal. Boldly headed “in pursuance of an Act of Congress,” Appointing Louis Joseph de Beaulieu to rank as a Captain by Brevet in the Army of the United States of America. Mifflin was a remarkable patriot, having served two terms in the Continental Congress (1772-1776), one as President of that assembly. Later, he was a delegate to the Constitutional Congress (1787), and Governor of Pennsylvania. During the Revolution he was aide-de-camp to Washington and Quartermaster General of the Army. Beaulieu was a lieutenant in the first Cavalry in Pulaski’s command, but was captured at the fall of Savannah (9 October 1779), He was exchanged but was wounded again at Charleston (12 May 1780). This form of appointment is very rare.