I'm having a problem doing my family tree. I found that I'm somehow related to Dr. Albert Schweitzer (He was born in Kaysersberg. Apparently my grandmother was a distant cousin), but I can't find the link in the tree, I'm always hitting a dead end at the Schweitzer part of the tree. I'm related to Marie Josephine Felicité "Altanie" Schweitzer, who married Johann Joseph Hubertus Pons. I have info about her father (Jean "Guillaume" Schweitzer), her grandfather (Adrien/Andre/Andreas Schweitzer) and her great-grandfather (Gregorii(?) Schweitzer), but I can't find anything else other than brothers and dead ends. Can anyone give me some info?
Thanks in advance.