Done DNA tests on both Ancestry and MyHeritage. Got a match of a 2nd cousin to my father (for sure, my half-sister's DNA results show no relation) and her daughter. Should be in the 2nd great grandparent generation, but none of the names match. Though on my birth cert. my father's paternity was always disputed. Never had any contact. Attempts to reach his later children futile..denial. His parents and further ancestors' names unknown. The names most likely to connect to father's name: Drgas (probably used to be a more common Dygas but a sloppy 'y' became an 'r' ). Cousin's maternal line names: Blonski or Chylek > Kossowski>Kosowski/Kososki are most likely to hold the answer.
