Surname Cumby (Cumby 
) , in the entire world, is quite a rare cognomen. The family name Cumby is habitual in Canada, where it is a rare surname, New Zealand, and the United States. In absolute terms, it is commonest in the United States, Canada, and the United Kingdom.
| william pryce cumby Royal Navy officer, GB (b. 1771) |
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| charles cumby British Royal Navy officer, commander in 1813 (1779-?) (b. 1779) |
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bert cumby American military intelligence officer, US (b. 1912) |
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| george cumby All-American college football player, professional football player, linebacker, US (b. 1956) |
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| brian cumby (b. 1950) |
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| james cumby researcher ORCID ID = 0000-0002-9499-3319 |
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| robert cumby economist (Georgetown University) |
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| david charles cumby British Royal Navy officer, lieutenant in 1829 |
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| sarah cumby (died 1865) |
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| william cumby Peerage person ID=652905 |
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| patrick cumby |
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