Jr. (born 1943), former chairman and CEO of JP Morgan Chase William Henry Harrison (businessman) (1892–1956), American general and businessman William Welsh Harrison, American businessman Writers William Harrison (antiquary) (1802–1884), English antiquarian writer on the history of the Isle of Man William Harrison (author) (1933–2013), author of "Roller Ball Murder" and the screenplay for Rollerball William Harrison (poet) (1685–1713), English poet and diplomat Other William Harrison (instrument maker) (1728–1815), son of John Harrison, inventor of the chronometer William Harrison (physician) (1935–2010), American obstetrician William Harrison (singer) (1813–1868), English tenor and opera impresario William B. Harrison (Alamo defender) (1811–1836), Texas soldier William Greer Harrison (1836–1916), member of the Committee of Fifty after the 1906 San Francisco earthquake William Jerome Harrison (1845–1908), British geologist, science writer, and amateur photographer William Henry Harrison (architect) (1897–1988), American architect in California "Victim" of a 1660 murder found alive two years later; see The Campden Wonder Grancer Harrison (1789–1860), plantation owner whose alleged ghost has been the subject of several stories See also William Henry Harrison (disambiguation)