Cognomen Clatworthy (Clatworthy 
) , globally, is quite a rare surname. The surname Clatworthy is habitual in Australia, where it is quite a rare surname, the United Kingdom, and New Zealand. Measured by absolute frequency, it is the most numerous in the United Kingdom, Australia, and the United States. Much less frequently, Clatworthy is the forename as well as the last name.
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| Clatworthy | Japan, United Kingdom, Australia, United States, Canada |
| walter angove clatworthy Walter Angove Clatworthy (1866-1948). Invented the Holmes-Clatworthy system of driving printing machinery. 1895 Manager of Acme and Immisch Electric W... (b. 1866) |
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| fred payne clatworthy landscape photographer, US (b. 1875) |
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| robert clatworthy art director (1911-1992), US (b. 1911) |
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| w. h. clatworthy American mathematician (b. 1915) |
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| robert clatworthy sculptor, painter, teacher of art (1928-2015), GB (b. 1928) |
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| geoffrey clatworthy New Zealand activist, NZ (b. 1939) |
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| joseph llambias clatworthy painter (1948-2011) (b. 1948) |
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| david clatworthy South African actor (b. 1960) |
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| jodie clatworthy Australian swimmer, Olympic athlete, Commonwealth Games silver medallist, AU (b. 1972) |
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| edwin b clatworthy researcher ORCID ID = 0000-0002-7204-2213 |
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| alex clatworthy actress |
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| nicholas clatworthy Peerage person ID=520752 |
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| david clatworthy researcher ORCID ID = 0000-0002-3864-8879 |
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| peter clatworthy Peerage person ID=520753 |
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| philip l. clatworthy researcher |
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