John Quincy Adams was the sixth President of the United States and the son of ABIGAIL Adams. His wife, Louisa, was the daughter of Henry Johnson and Frances Johnson, and her maiden name was Louisa Catherine Johnson. John Quincy Adams was a strong advocate for the Amistad case, which involved the illegal transport of African slaves on the Amistad ship. He also served as Secretary of State under President James Monroe and Vice President under President John Calhoun.