text: Francis Hopkinson ( September 21 , 1737 â `` May 9 , 1791 ) , an American author , was one of the signers of the Declaration of Independence as a delegate from New Jersey .
simplified: Francis Hopkinson ( September 21 , 1737 - May 9 , 1791 ) , an American author , was one of the signers of the Declaration of Independence as a delegate from New Jersey .