sentences:  In 1826, Morgan's adopted daughter Catherine (a niece of his first wife) married John Adams Dix who was then hired by Morgan to look after his land holdings in Cooperstown.Dix later became a US Senator, Union Army General and Governor of New York.Morgan was elected as a Democratic-Republican to the 17th, and re-elected as a Jacksonian Democratic-Republican to the 18th United States Congress, holding office from December 3, 1821, to March 3, 1825.