Cognomen Penfield (Penfield 
) , all over the world, is quite a rare family name. The surname Penfield is characteristic of the United States, where it is a rare surname, New Zealand, and the United Kingdom. Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Canada. Very seldom, Penfield is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Penfield | Canada, Philippines, Brazil, United Kingdom, United States |
| james penfield (b. 1732) |
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| samuel penfield (b. 1734) |
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| daniel penfield American businessman, US (b. 1759) |
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frederic courtland penfield American diplomat (1855-1922), US (b. 1855) |
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| penfield beach goodsell (b. 1796) |
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samuel l. penfield American chemist, professor, Yale University (1856-1906), US (b. 1856) |
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edward penfield United States illustrator (1866-1925), US (b. 1866) |
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wilder graves penfield Canadian neurosurgeon, college football player and coach, CA (b. 1891) |
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| annie frances penfield (b. 1853) |
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penfield tate iii American politician, US (b. 1956) |
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| add penfield American sports announcer, US (b. 1918) |
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| louis a. penfield (b. 1918) |
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| penfield tate American politician, US (b. 1931) |
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| mary penfield Peerage person ID=322825 |
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| steven penfield researcher (ORCID 0000-0001-6340-1731) |
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