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Son of Franciszek Koss and Marianna Koss Husband of Emilia "Emily" Koss Brother of Jan "John" Koss; Franciszek Ignacy Koss; Augustyn Wojciech Koss; Augustyna Józefina Koss; Antonia Martianna Koss and 4 others; Ignacy "Ignatz" Jakub Koss; Marianna "Mary" Ritter; Anna Koss and Anton Koss « less