Cognomen Hornsby (Hornsby 
) , all over the world, is a common family name. The last name Hornsby is habitual in the United Kingdom, where it is quite a rare surname, the United States, and Australia.
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| Hornsby | United Kingdom, Australia, United States, South Africa, Canada |
| thomas hornsby (1704-1771) (b. 1704) |
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| thomas hornsby British astronomer and mathematician, GB (b. 1733) |
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| elizabeth hornsby 1738 - 1792 (b. 1738) |
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| richard hornsby British businessman; (1790-1864), GB (b. 1790) |
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| reuben hornsby Texas surveyor (1793-1879) (b. 1793) |
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j. t. marryat hornsby New Zealand politician (1857-1921), NZ (b. 1857) |
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| james hornsby James Hornsby (1836-1910) of Richard Hornsby and Sons., GB (b. 1836) |
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dan hornsby American singer and musician, US (b. 1900) |
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| john hornsby British cricketer (1860-1926), GB (b. 1860) |
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| aubrey hornsby United States Army general, US (b. 1895) |
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bruce hornsby American musician, US (b. 1954) |
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vinnie hornsby American musician, US (b. 1966) |
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| pamela margaret hornsby (1918-2004) (b. 1918) |
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| margaret hornsby (b. 1908) |
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| don hornsby American stand-up comedian, novelty pianist, US (b. 1923) |
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