Cognomen Powelson (Powelson 
) , around the world, is quite a rare last name. The cognomen Powelson is habitual in the United States, where it is a rare surname, Canada, and Switzerland.
| VARIANT | COUNTRY |
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| Powelson | Switzerland, India, United Kingdom, Canada, United States |
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benjamin f. powelson American photographer, US (b. 1823) |
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| dorothy powelson American microbiologist (b. 1916) |
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| stephen powelson American accountant, known for memorizing and reciting the Iliad, US (b. 1917) |
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| john p. powelson Dr. John P. Powelson, emeritus prof. of economics, Univ. of Colorado; d. Jan. 1, 2009, US (b. 1920) |
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robert powelson American lawyer |
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| john a. powelson professor of surgery |
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| susan powelson researcher |
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| dave powelson |
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