George Edward "Duffy" Lewis (April 18, 1888 – June 17, 1979), born in San Francisco, California, was a left fielder and left-handed batter who played Major League Baseball for the Boston Red Sox (1910–17), New York Yankees (1919–20) and Washington Senators (1921).
In Boston, Lewis belonged to the outfield trio which included Tris Speaker (CF) and Harry Hooper (RF) and is considered perhaps the best ever in fielding skill. At bat, Lewis was a renowned line-drive hitter who consistently finished in the top ten in most offensive categories despite a short career which was interrupted by World War I.
- From 1912 to 1933, there was a 10-foot-high mound that formed an incline in front of the left field wall at Fenway Park. Duffy Lewis, Boston's first star left fielder, played the steep 10-foot embankment so well, it became known as Duffy's Cliff. Gary Shultz, at Baseball Reference