In October 1777, British ships sailed upriver from New York City in support of General John Burgoyne who was north of Albany.

Major General John Vaughan led a raiding party to Clermont and burned Livingston's home because of the family's role in the rebellion.

Chancellor Livingston administered the oath of office to President George Washington, became Secretary of Foreign Affairs, and negotiated the Louisiana Purchase.

[3] In 1793, Robert Livingston built a second mansion on the property, confusingly named "Clermont", which subsequently became known as both "Arryl House" and "Idele", which burned in 1909.

Following John Henry's death, Alice turned the mansion and property over to the state in 1962 so that all the people of New York could experience it.