right|thumb|Robert "Bob" Wrenn
Robert Duffield Wrenn (September 20, 1873 – November 12, 1925) was an American left-handed tennis player, four-time U.S. singles championship winner, and one of the first inductees in the International Tennis Hall of Fame. a star player at football, ice hockey, and baseball. Wrenn and Chace gathered some friends from other northeast colleges including Cornell University and returned to Canada over Christmas break 1894-95 for a series of hockey matches.
Wrenn was vice-president of the United States Tennis Association from 1902 until 1911 and president from 1912 until 1915. He was inducted into the Hall of Fame in 1955.
He was arrested in 1914 when the car he was driving ran over and killed Herbert George Loveday, the choir director of St Mary's Church in Tuxedo Park, New York. Wrenn was exonerated when, according to a May 21, 1914 article in The New York Times, "the Grand Jury, finding from testimony that the mechanism of the car had become disarranged, and the steering gear powerless, declined to find an indictment, and the complaint was dismissed."
Wrenn was an aviator in World War I.
</references>