that Jackson's claim for himself was valid, and his mineralogical insights were significantly in advance of those of his contemporaries, including Houghton. It is widely believed and reported that in 1873, Jackson was afflicted with mental illness, either through a seizure, or having a manic episode upon seeing Morton's tombstone, and spent the remainder of his life in the McLean Asylum, Somerville, Massachusetts, where he died on August 28, 1880. In fact, Jackson suffered a left brain stroke that affected his language area, and while he never regained his speech, he was cooperative and did not exhibit "inappropriate behavior of insanity". By unanimous vote of the McLean Asylum Trustees, Jackson was hosted as a guest at the Asylum at no charge for the entire duration of his stay in part because of his earlier helpful work in collaboration with McLean Superintendent Dr. Luther Bell showing beneficial effects of ether in McLean Asylum patients (Wolfe & Patterson, 2007, pages 18–19), as described in Jackson's Manual of Etherization (1861). He is buried at Mount Auburn Cemetery in Cambridge, Massachusetts, as is one of his rivals, Dr. William T. G. Morton. Legacy In 2021, residents of the town of Jackson, New Hampshire, voted to replace President Andrew Jackson with Charles Thomas Jackson as the namesake of the town. Selected writings Further reading "Charles Thomas Jackson." Dictionary of American Biography Base Set. American Council of Learned Societies, 1928–1936. "Charles Thomas Jackson." Webster's American Biographies. G. & C. Merriam 1975. References External links - Contains an extensive bibliography of Jackson's writings Obituary, Scientific American, "Dr. Charles Thomas Jackson", 2 October 1880, p. 218 1805 births 1880 deaths American geologists 19th-century American physicians Harvard Medical School alumni People from Plymouth, Massachusetts Physicians from Massachusetts McLean Hospital patients Recipients of the Order of Saints Maurice and Lazarus