Answer:
Great-great-uncle
Born January 31, 1821, in Watertown, New York, Zina Diantha was the eighth of William and Zina Baker Huntington's ten children. Her father served in the War of 1812, and his father, William Huntington, Sr., in the Revolutionary War. Zina's great-great-uncle, Samuel Huntington, was a signer of the Declaration of Independence.
hope that helped :))