Cognomen Belknap (Belknap 
) , across the world, is quite a rare family name. The surname Belknap is habitual in the United States, where it is a rare surname, Canada, and New Zealand.
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| Belknap | Canada, Australia, United States, United Kingdom, South Africa |
| anne belknap (born 1460) (b. 1460) |
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| edward belknap English court official (b. 1470) |
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jeremy belknap American historian, US (b. 1744) |
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william g. belknap US Army soldier (b. 1794) |
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w. b. belknap (1811-1889), US (b. 1811) |
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austin belknap American politician, US (b. 1819) |
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| daniel belknap American composer (1771-1815), US (b. 1771) |
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william w. belknap Union Army general (1829-1890), US (b. 1829) |
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| joseph belknap (b. 1769) |
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| zedekiah belknap American painter, US (b. 1781) |
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george belknap United States admiral (1832-1903), US (b. 1832) |
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charles e. belknap American politician (1846-1929), US (b. 1846) |
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robert lenox belknap American businessman, US (b. 1848) |
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william richardson belknap American businessman, US (b. 1849) |
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w. c. belknap American politician (1850-1937), US (b. 1850) |
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