William Jennings "Duke" Kenworthy (July 4, 1886 — September 21, 1950) was a Major League Baseball second baseman.
He played all or part of four seasons in the majors, two of which — 1914 and 1915 — were spent as the starting second baseman for the Kansas City Packers of the short-lived Federal League.
Bracketed around that were short stints for the Washington Senators in 1912 (where he played in the outfield) and for the St.
Louis Browns in 1917.
In 285 games over four seasons, Kenworthy posted a .304 batting average (301-for-989) with 159 runs, 71 doubles, 21 triples, 18 home runs, 146 RBI, 61 stolen bases, 67 bases on balls, .360 on-base percentage and .473 slugging percentage.
He finished his career with a .946 fielding percentage playing primarily at second base and several games at left and right field.
Kenworthy drowned while fishing off the California coast on September 21, 1950.