Surname Farnam (Farnam 
) , across the world, is quite a rare last name. The last name Farnam is habitual in the United States, where it is a rare surname, Czechia, and Hungary. Measured by absolute frequency, this name is the most popular in the United States, Iran, and Myanmar. Very seldom, Farnam is the forename as well as the last name.
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| Farnam | Iran, Myanmar, Germany, Saudi Arabia, United States |
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henry farnam American businessman, US (b. 1803) |
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| rufus farnam American silversmith (1766–1863), US (b. 1766) |
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| henry farnam American silversmith, US (b. 1773) |
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charles henry farnam American lawyer and genealogist (1846-1909), US (b. 1846) |
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henry walcott farnam American economist (1853-1933), US (b. 1853) |
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ruth s. farnam American nurse, soldier and writer, US (b. 1873) |
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charles henry farnam Yale Graduate, Benefactor of Yale University, US (b. 1873) |
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thomas wells farnam American banker and Red Cross official 1877-1943, US (b. 1877) |
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| george bronson farnam American physician, US (b. 1841) |
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| william whitman farnam 1844-1929 (b. 1844) |
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| sarah sheffield farnam 24 Sep 1850 - (b. 1850) |
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| william wolcott farnam 1853-1933 (b. 1853) |
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c. eugene farnam politician in Massachusetts, US, US (b. 1916) |
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| lynnwood farnam Canadian organist (1885-1930), CA (b. 1885) |
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| louise whitman farnam American physician (b. 1890) |
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