Cognomen Silcox (Silcox 
) , in the world, is quite a rare surname. The cognomen Silcox is habitual in the United States, where it is a rare surname, the United Kingdom, and Australia. In absolute terms, this name is the most popular in the United States, the United Kingdom, and Canada. Very seldom, Silcox is the forename as well as the last name.
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| Silcox | Australia, Myanmar, Canada, United Kingdom, United States |
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lucy mary silcox English headmistress and feminist (1862-1947), GB (b. 1862) |
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| ferdinand a. silcox US (b. 1882) |
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| james silcox (b. 1923) |
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| david p. silcox (b. 1937) |
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| mark silcox Indian-born British comedian |
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| john silcox American physicist, US |
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| harry silcox college basketball player (1952–1955) Temple |
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| david p. silcox art historian and former president of Sotheby's Canada |
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| deborah silcox American politician, US |
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| mary t silcox researcher |
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| don silcox college basketball player (1975–1975) Nevada-Las Vegas |
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| wesley silcox bull rider, US (b. 1985) |
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| nicholas silcox Australian rower, AU (b. 1989) |
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