William H. Ryan | |
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| Member of the U.S. House of Representatives from New York's 35th district 32nd district (1899–1903) | |
| In office 1899–1909 | |
| Personal details | |
| Born | May 10, 1860 Hopkinton, Massachusetts |
| Died | November 18, 1939 (aged 79) Buffalo, New York |
William Henry Ryan (May 10, 1860 – November 18, 1939) was an American businessman and politician who served one term as a U.S. Representative from New York from 1899 to 1909.