His responsibility for administration in Indian affairs extended from Hudson's Bay in Canada to the Carolinas, and from the Atlantic as far west as any Indians were known. Appointed to deal with Indians, he gained considerable knowledge of Indian affairs, and through just and honest treatment his influence over Indian power became tremendously important to colonial governors and their colonies. At Oswego in 1766, he effected Pontiac's surrender, ending the Pontiac Conspiracy. After moving in 1763 to Johnson Hall at Johnstown, N.Y., his fourth and last home, he held very important councils there with many Indians who came to speak with him, at times numbering 1000 individuals. He died there on Sunday, 11 July 1774, after holding an important Indian Council, admired and trusted by the Indians, respected by the military and civil officers of the colonies, and a great credit to the public trust reposed in him.