Complex sentence: Samuel Peters Jarvis (November 15,1792--September 6,1857) was the Chief Superintendent of Indian Affairs for Upper Canada from 1837 until 1845, and a member of the Family Compact.
Split into simpler sentences: Samuel Peters Jarvis (November 15,1792--September 6,1857) was a Canadian government official in the nineteenth century. He was the Chief Superintendent of Indian Affairs for Upper Canada (1837-1845), and he was a member of the Family Compact.