Thank you so much for your help. I was able to locate Anna and Albert Oldenburgs naturalization petitions. Unfortunately, it left me in the same spot I am in currently. I discovered that Anna and Albert were married in Berlin in 1904. But I cannot locate the record. I am trying to find out Anna's full birth name. Somewhere I picked up that her name was Anna Maria Louise ? .... If Josef were her brother I thought maybe Koenig was her last name, but I have searched under that and under Russ and still come up empty handed. I was hoping someone here might know more about this family and maybe point me in the right direction.