Thank you for your rapid response. I apologize for the confusion, so if I might shed more light.

1) yes my grandparents were of Polish nationality

2) My father was born in Germany, has German birth certificate and nationality according to the documents I have, including US Immigration documentation when he arrived

3) My father remained a German Citizen until 2005, when he finally applied for US Citizenship and passport. I started the application process about a year before he applied for the US citizenship.


I am hoping that might help.

Thanks