Henry Warner Slocum, Jr.

Henry Warner Slocum, Jr. (May 28, 1862 – January 22, 1949) was an American male tennis player who was active in the late 19th century. Slocum won the 1888 Men's Singles title at the U.S. National Championships' in Newport against defending champion and compatriot Howard Taylor in straight sets. The next year he successfully defended his title in the Challenge Round with a victory over Quincy Shaw.

His other career highlights include winning the Rockaway Hunting Club Invitation three times (1886–1888), the Wentworth Open Tournament at Wentworth, New Hampshire (1887), the Staten Island Invitation (1887).

He was president of the United States National Lawn Tennis Association (USNLTA) in 1892 and 1893.

Legacy Slocum was inducted into the International Tennis Hall of Fame in 1955. In 1890 he published a book titled Lawn Tennis in Our Own Country.

Grand Slam finals

Singles (2 titles, 2 runners-up)

ResultYearChampionshipSurfaceOpponentScoreLoss 1887 U.S. Championships Grass Richard Sears 1–6, 3–6, 2–6Win 1888 U.S. Championships Grass Howard Taylor 6–4, 6–1, 6–0Win 1889 U.S. Championships Grass Quincy Shaw 6–3, 6–1, 4–6, 6–2Loss 1890 U.S. Championships Grass Oliver Campbell 2–6, 6–4, 3–6, 1–6

Doubles (1 title, 2 runners-up)

ResultYearChampionshipSurfacePartnerOpponentsScoreLoss 1885 U.S. Championships Grass Percy Knapp Joseph Clark Richard Sears 3–6, 0–6, 2–6Loss 1887 U.S. Championships Grass Howard Taylor James Dwight Richard Sears 4–6, 6–3, 6–2, 3–6, 3–6Win 1889 U.S. Championships Grass Howard Taylor Valentine Hall Oliver Campbell 14–12, 10–8, 6–4

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