Family name Klasén (Klasén 
) , across the world, is a rare last name. The last name Klasén is characteristic of Northern Europe, particularly Sweden, where it is quite a rare surname.
| hulda kristina eugenia klasén Titanic victim (b. 1876) |
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| klas albin klasén Titanic victim (b. 1893) |
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| gertrud emilia klasén Titanic victim (b. 1910) |
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