John Peter Haines | |
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| Born | December 17, 1851 New York, New York |
| Died | June 27, 1921 (aged 69) Toms River, New Jersey |
| Education | Columbia University |
| Occupation(s) | Businessman, activist |
| Spouse |
Mary Merritt (m. 1873) |
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John Peter Haines (1851–1921) was President of the American Society for the Prevention of Cruelty to Animals (ASPCA) from 1889 to 1906.