Cognomen Culligan (Culligan 
) , in all the world, is quite a rare last name. The last name Culligan is characteristic of Ireland, where it is quite a rare surname, Canada, where it is a rare surname, and the United States. Much less frequently, Culligan is the forename as well as the last name.
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| Culligan | South Africa, Canada, Ireland, United Kingdom, United States |
| arthur culligan Canadian politician (1878-1929), CA (b. 1878) |
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| john culligan business executive, US (b. 1916) |
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| tom culligan Canadian businessman, CA (b. 1945) |
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| kevin gerald culligan (b. 1935) |
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| patrick j culligan researcher |
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| william j culligan researcher ORCID ID = 0000-0002-4703-2451 |
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| casey rose culligan Peabody collector |
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| eamonn p culligan researcher ORCID ID = 0000-0003-4722-2121 |
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| dominic j culligan researcher |
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| andy culligan Canadian ice hockey player, CA |
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| patricia j. culligan researcher |
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| heather culligan (b. 1977) |
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