Harold Humphrey Hackett (July 12, 1878–November 20, 1937) was an American tennis player. July 12 is the 193rd day (194th in leap years) of the year in the Gregorian Calendar, with 172 days remaining. ... 1878 was a common year starting on Tuesday (see link for calendar). ... November 20 is the 324th day of the year (325th in leap years) in the Gregorian Calendar. ... 1937 (MCMXXXVII) was a common year starting on Friday (link will take you to calendar). ... Tennis balls This article is about the sport, tennis. ...

Born in Hingham, Massachusetts, but a long-time resident of New York, Hackett turned in his best results in doubles with Fred Alexander. Beginning in 1905, they were finalists at the U.S. Nationals a record seven consecutive years, winning in 1907, 1908, 1909, and 1910. Seal of Hingham, MA Hingham is a town located in Plymouth County on the South Shore of Massachusetts. ... Official language(s) English Capital Albany Largest city New York City Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 27th 141,205 km² 455 km 530 km 13. ... Frederick Beasley Alexander (b. ...

A graduate of Yale University, Hackett and Princeton graduate Alexander won the U.S. Indoor doubles three times (1906–08), and he teamed with Walter Hall to win the U.S. Clay Court doubles title in 1912. Yale University is a private university in New Haven, Connecticut. ... In the United States Princeton is the name of several places in the United States of America: Princeton, Florida Princeton, Illinois Princeton, Indiana Princeton, Iowa Princeton, Kansas Princeton, Kentucky Princeton, Louisiana Princeton, Maine Princeton, Massachusetts Princeton, Minnesota Princeton, Missouri Princeton, New Jersey Princeton, North Carolina Princeton, South Carolina Princeton, Texas...

The following year, 1913, he was player-captain of the U.S. Davis Cup team that beat the United Kingdom in the final to win the Cup. Davis Cup logo The Davis Cup is the premier international team event in mens tennis. ...

Hackett was ranked in the U.S. Top Ten twice: in 1902 and at number seven in 1906 (when he was a U.S. quarterfinalist). He was inducted into the International Tennis Hall of Fame in 1961.