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 _Ignacy STASIUK _____|
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|--Slawko STASIUK 
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|                                                                             _Johann I OSTERMANN _|__
|                                                                            |                        
|                                                      _Johann II OSTERMANN _|
|                                                     | (1850 - 1936)        |
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|                      _Heinrich (Henryka) OSTERMANN _|
|                     | (1886 - 1968)                 |
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|                     |                               |_Paulina KUBE ________|
|                     |                                 (1866 - 1932)        |
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|_Mila OSTERMANN _____|
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                      |                                _Jozef PRAZAK ________|
                      |                               | (.... - 1892)        |
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                      |_Ludmila PRAZAK _______________|
                        (1888 - 1975)                 |
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                                                      |_Maria MAREK _________|
                                                        (.... - 1892)        |
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