A treaty with the Cherokees was held at Fort Chiswell on New River, then a frontier. On the return of the chiefs home, Dr. [Thomas] Walker, a gentleman of distinction, and my father, [General] Joseph Martin, accompanied them. The Indians being guides, they passed through the place now called Cumberland Gap, where they discovered a fine spring. They still had a little rum remaining, and they drank to the health of the Duke of Cumberland. This gave rise to the name of Cumberland Mountain and Cumberland River.