|1st Commandant of the Marine Corps
He was the first officer commissioned in the United States Continental Marines (predecessor to the United States Marine Corps) and by tradition is considered to be the first Commandant of the Marine Corps - served 11/28/1775 to 8/27/1783.
After the disbandment of the Continental Marines and Navy following the end of the American Revolutionary War in 1783, Nicholas returned to civilian life and became an original member of the Pennsylvania Society of the Cincinnati.
Mary Jenkins married 5 March 1778, the dashing young Captain Samuel Nicholas, first commandant of the U.S. Marines, who was buried in Friends graveyard, Philadelphia, 27 August 1790, age 46. Nicholas died intestate. 
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