Surname Kilbourn (Kilbourn 
) , in the entire world, is quite a rare cognomen. The last name Kilbourn is characteristic of the United States, where it is a rare surname, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
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| Kilbourn | Canada, United Kingdom, United States, South Africa, New Zealand |
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byron kilbourn American politician, US (b. 1801) |
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| maria kilbourn 1821 - 1907 (b. 1821) |
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| john kilbourn English poet and essayist, GB (b. 1838) |
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| antony ferdinand kilbourn de La Salle Brother (1894-1961), US (b. 1894) |
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| ruth kilbourn American dancer, US (b. 1895) |
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| oliver kilbourn British coal miner and painter, GB (b. 1904) |
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| william kilbourn Canadian historian, CA (b. 1926) |
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| rosemary kilbourn Canadian artist, CA (b. 1931) |
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| joan priscilla kilbourn microbiologist and educator (b. 1936) |
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| cheryl a. kilbourn (b. 1947) |
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| annelisa kilbourn conservationist 1967–2002, CH (b. 1967) |
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| elisha kilbourn (1726-1813) |
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| michael r kilbourn researcher (ORCID 0000-0003-4100-4676) |
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| judson kilbourn researcher (ORCID 0000-0002-0833-0296) |
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| kristin kilbourn researcher |
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