Cognomen Cagney (Cagney 
) , across the world, is quite a rare surname. The cognomen Cagney is habitual in Ireland, where it is quite a rare surname, Australia, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it is commonest in the United States, Ireland, and Australia. Very seldom, Cagney is the forename as well as the last name.
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| Cagney | New Zealand, Australia, United States, United Kingdom, Ireland |
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james francis cagney, jr. American actor and dancer (1899–1986), US (b. 1899) |
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william cagney American actor and producer (1905-1988), US (b. 1905) |
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jeanne cagney American actress (1919-1984), US (b. 1919) |
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| catharina helena cagney SE (b. 1863) |
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| frances cagney wife of actor James Cagney, US (b. 1899) |
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| mark cagney Irish radio and television presenter, IE (b. 1956) |
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| kathleen a. cagney Ph.D. The Johns Hopkins University 1998 |
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| mary cagney Peerage person ID=356698 |
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| donal john cagney Peerage person ID=563365 |
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| n. cagney researcher ORCID ID = 0000-0002-1466-1622 |
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| daniel n cagney researcher (ORCID 0000-0003-2753-5497) |
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| katharine mary cagney Peerage person ID=563366 |
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| gerard cagney researcher |
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| mike cagney American entrepreneur |
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| keith m. cagney Peerage person ID=183186 |
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