Cognomen Longnecker (Longnecker 
) , all around the world, is quite a rare family name. The last name Longnecker is habitual in the United States, where it is a rare surname, New Zealand, and Canada, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in the United States, Canada, and Malaysia.
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| Longnecker | United Kingdom, Malaysia, United States, Canada, New Zealand |
| henry clay longnecker Union Army officer, lawyer, judge and american politician, US (b. 1820) |
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| michael longnecker American scientist and the George P (b. 1946) |
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| david e. longnecker (b. 1939) |
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| brent m. longnecker American management consultant, US (b. 1956) |
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| nancy longnecker New Zealand based science communication academic, NZ |
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| richard longnecker researcher |
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| michael thomas longnecker Ph.D. Florida State University 1976 |
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| matthew p longnecker researcher |
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| daniel s. longnecker |
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