1885 letter from attorney and farmer George W. Carleton of Gayoso, Missouri, to his cousin Mary regarding their shared ancestor Sir Guy Carleton. Transcript at the end of this post.
From brief online research, hopefully correct: [corrections and additions welcome!]
George W. Carleton was born April 19, 1830 at Stillwater, New York, the son of Samuel and Sarah (Barron) Carleton.
The following information, also hopefully correct, is derived from his obituary and from a short biography in the "History of Southeast Missouri", Volume I, by Robert Sidney Douglass.
Shortly after George's birth, the family moved to St. Clair County, Michigan, where they farmed. In 1852, George moved to New Madrid, Missouri, where he taught school and studied civil engineering. He married Somerville/Summerville Tomlin in 1853, and they then moved to Gayoso, Missouri, where George spent the rest of his life, at various times farming, working as a lawyer, publishing the "Gayoso Democrat" and serving as mayor, as county clerk and in the state legislature.
I believe George and his wife had two sons, one of whom had apparently died by the time of the 1870 Census. The other son, William Sam Carleton, lived to adulthood and raised a family but predeceased his father in 1889, according to George's obituary. George died in 1893 at Gayoso.