English

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English Wikipedia has an article on:
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Etymology

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Probably a variant of McCullough.

Proper noun

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McColley (plural McColleys)

  1. A surname from Irish.

Statistics

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  • According to the 2010 United States Census, McColley is the 23804th most common surname in the United States, belonging to 1062 individuals. McColley is most common among White (85.22%) individuals.

Further reading

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