Alfred "Ralph" Winsor (January 8, 1880 – September 12, 1961) was an American ice hockey coach and amateur ice hockey player. Winsor coached ice hockey at Harvard University between 1903 and 1917.

Quick Facts Born, Died ...

Alfred Winsor
Alfred Winsor circa 1901–1902 with the ice hockey team of Harvard University.
Born	(1880-01-08)January 8, 1880 Brookline, Massachusetts
Died	September 12, 1961(1961-09-12) (aged 81) Cataumet, Massachusetts
Position	Forward
Played for	Harvard University Boston Hockey Club Boston A.A.
Playing career	1900–1912 Coaching career
Biographical details
Alma mater	Harvard University
Playing career
1900–1902	Harvard
1911–1912	Boston A.A.
Coaching career (HC unless noted)
1903–1917	Harvard
1911–1915	Boston A.A.
1915–1916	Harvard Club
1923–1924	Harvard
Head coaching record
Overall	114–38–2 (.747)
Accomplishments and honors
Championships
1904 IHA Championship 1904 Intercollegiate Championship 1905 IHA Championship 1905 Intercollegiate Championship 1906 IHA Championship 1906 Intercollegiate Championship 1909 IHA Championship 1909 Intercollegiate Championship 1913 IHL Championship 1913 Intercollegiate Championship 1915 IHL Championship 1916 IHL Championship 1916 Intercollegiate Championship 1917 IHL co-championship
Medal record Men's ice hockey Representing the  USA Winter Olympics 1932 Lake Placid (Coach)

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Alfred Winsor was born in Brookline, Massachusetts, on January 8, 1880, to Alfred Winsor Sr. and Linda Kennard.^[1] Winsor attended Harvard University from where he graduated in 1902. Prior to that he had attended Noble and Greenough's School in Boston.

Winsor played ice hockey at Harvard, at the forward position, between 1900 and 1902 and was captain of the 1902 team that played in the intercollegiate league series against teams from Yale, Princeton, Brown and Columbia. Winsor led his team with 11 goals in six intercollegiate games in 1902 when Harvard finished in second place behind the team from Yale University.

In 1903, at an age of 23, Alfred Winsor took over the coaching duties of the Harvard University hockey team, and he became an instant success when the team won the 1903 intercollegiate series. Winsor became a mainstay as a coach for the Harvard team for 14 years, until 1917, and implemented a rigid defensive system that other teams felt a need to copy to match up against the crimson colored Harvard team.

Concurrently with his coaching career Winsor also continued to play amateur hockey, between 1903 and 1911 on the Boston Hockey Club and in 1912 with the Boston Athletic Association.

In 1932 Winsor coached the American hockey team at the Winter Olympics in Lake Placid where the American team finished with silver medals.

Alfred Winsor died on September 12, 1961, in Cataumet, Massachusetts, at an age of 81. In 1973 he was inducted into the United States Hockey Hall of Fame.