I'm trying to find information about my family from the Konigsberg area. I have some information but can't go any further using Ancestry or FamilySearch. Here's what (I think) I know:

My great-great-great grandparents were:
Christoph Wegner (?-?). He may have lived in Heiligenbeil (now Mamonovo) around 1872
Christine Reizuhn (?-?)
They lived in Konigsberg.

My great-great grandparents were:
Karl Friedrich Wilhelm Mohr (1849-before 1906). He was a shoemaker from Konigsberg. I don't know if he had any siblings.
Carole (Wegner) Mohr (1849-before 1906). She may have been born in Tollmingkehmen (now Chistye Prudy) and may have moved to Arnsdorf after the death of her husband

Their children were:
Karl Friedrich Wilhelm Mohr (1881-1911) (My great-grandfather). He was born in Konigsberg, but moved to Berlin by 1906, was married and died there. I know my grandfather was his only child.
Gertrud Elisabeth (1873-?). She married Carl Rudolf Federmann (1873-?) from Alt Pillau (now Baltijsk) in 1897. I believe they lived in Konigsberg, but don't know if they had children

I have found several people who are DNA matches with me where "Mohr" is the only common surname in our trees, but I can't find any links with these people I know of. Thanks in advance for any information you can provide, or any other resources you may know of...

Kurt Mohr