Cognomen Rumsey (Rumsey 
) , in the world, is quite a common last name. The family name Rumsey is habitual in the United Kingdom, where it is quite a rare surname, Zambia, and the United States. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Canada. Very seldom, Rumsey is the forename as well as the last name.
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| Rumsey | United Kingdom, Zambia, Australia, United States, Canada |
| walter rumsey Welsh judge and politician, GB (b. 1584) |
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| john rumsey Rumsey, John (fl. 1660–1686), conspirator (b. 1660) |
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james rumsey American mechanical engineer (1743-1792), US (b. 1743) |
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| benjamin rumsey American politician, US (b. 1734) |
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| mary rumsey (b. 1731) |
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edward rumsey American politician (1800-1868), US (b. 1800) |
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david rumsey American politician (1810-1883), US (b. 1810) |
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julian sidney rumsey American politician (1823-1886), US (b. 1823) |
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| henry rumsey American politician, US (b. 1784) |
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| elisha rumsey American pioneer, US (b. 1785) |
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| lacy rumsey clerk of H.M. Treasury (1787-1872), GB (b. 1787) |
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william rumsey American lawyer (b. 1841) |
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elida rumsey (b. 1842) |
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| henry rumsey Rumsey, Henry Wyldbore (1809–1876), medical practitioner and writer on sanitary reform (b. 1809) |
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| edward rumsey New Zealand architect (1824-1909), NZ (b. 1824) |
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