Surname Newkirk (Newkirk 
) , all over the world, is a common family name. The cognomen Newkirk is habitual in the United States, where it is quite a rare surname, New Zealand, where it is a rare surname, and Canada. Not in comparison with a country's population, this name is the most popular in the United States, Canada, and South Africa.
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| Newkirk | South Africa, Australia, United States, Argentina, Canada |
| matthew newkirk American businessman, civic leader (1794–1868) (b. 1794) |
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h. wirt newkirk American politician, US (b. 1854) |
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| garrett newkirk (b. 1847) |
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john v. "scarsdale jack" newkirk American military aviator, US (b. 1913) |
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| joel newkirk Major League Baseball pitcher, US (b. 1896) |
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ingrid newkirk British-American animal rights advocate, author & activist, GB (b. 1949) |
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| floyd newkirk American baseball player, US (b. 1908) |
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| alex newkirk American baseball player (1916-1996), US (b. 1916) |
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| john b. newkirk (b. 1920) |
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| gordon allen newkirk, jr. US (b. 1928) |
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shavar newkirk basketball player, US (b. 1996) |
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| jay newkirk (b. 1942) |
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| steven newkirk American swimmer, US (b. 1957) |
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| thomas newkirk (b. 1948) |
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| don newkirk American record producer (b. 1967) |
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