Family name Blewitt (Blewitt 
) , in the world, is quite a rare cognomen. The last name Blewitt is characteristic of the United Kingdom, where it is quite a rare surname, Australia, and Ireland, where it is a rare surname. Not in comparison with a country's population, the name is most common in the United Kingdom, the United States, and Australia.
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| Blewitt | United Kingdom, United States, Ireland, Australia, South Africa |
| jonas blewitt English musician (b. 1757) |
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| jonathan blewitt English composer, GB (b. 1782) |
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patrick blewitt Irish-American mining engineer, US (b. 1833) |
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| reginald james blewitt Collieries, railways etc, GB (b. 1799) |
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edward francis blewitt American civil engineer, businessman, and politician (1859-1926), US (b. 1859) |
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| octavian blewitt British writer (b. 1810) |
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joe blewitt British long-distance runner (1895-1954), GB (b. 1895) |
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| w. e. blewitt British artillery officer (1854-1939) (b. 1854) |
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| ira f. blewitt American politician, US (b. 1876) |
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| charles blewitt English cricketer (1877-1937), GB (b. 1877) |
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| geraldine c. blewitt maternal grandmother of Joe Biden (b. 1886) |
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| phyllis blewitt (b. 1896) |
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| trevor blewitt (b. 1900) |
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| david blewitt American cinematographer and film editor (1928-2010), US (b. 1928) |
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| shane blewitt British military officer and royal courtier, IE (b. 1935) |
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