My father was Antoni Georg Przeklasa. I don't have a lot of concrete information about his family. What information I do have can be viewed at:
I remember being told when I was a child, that my father's father was married three times, that children of the first marriage went to america, that my father was from the second marriage, and my uncle Wladek from the third marriage. But my uncle doesn't know about the first marriage, and has my grandfather's birthday twenty years later than what my father had told my mother.
Also, it appears my father had been married before the war and fathered two children. Their mother died a few days after the birth of the second child. My mother only found out when he died.