Last name Rosencrans (Rosencrans 
) , across the world, is a rare surname. The family name Rosencrans is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and Malaysia.
| VARIANT | COUNTRY |
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| Rosencrans | Spain, Malaysia, United States, Canada |
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robert rosencrans American television network executive, US (b. 1927) |
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| eva rosencrans American fashion designer (b. 1901) |
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| peter l rosencrans researcher |
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| william rosencrans researcher |
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| steven ira rosencrans Ph.D. Massachusetts Institute of Technology 1964 |
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