William Whitwell Greenough | |
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| Born | June 25, 1818 |
| Died | June 17, 1899 (aged 80) Boston, Massachusetts |
| Alma mater | Harvard University |
| Spouse | Catharine Scollay Curtis |
| Children | 6 |
| Parent(s) | William Greenough Sarah Gardner |
| Relatives | Barrett Wendell Jr. (grandson) |
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William Whitwell Greenough (June 25, 1818 – June 17, 1899) was an American merchant who served as president of the Boston Public Library from 1868 to 1888.