My Partner knows nothing about his ancestry at all. The only thing he has is a christening card with the birth date of his Grandmother Phillipine Simon. She married Heinrich Kuehn, we dont know when or anything about him at all. I think theres a 100 year thing where we cant see German Births online? Phillipine was born 1920 Rockenhausen, Donnersbergkreis, Rheinland Pfalz, Germany. Any help would be really appreciated.