Hi Toni,
I have just read your note by mistake as I was actually searching for google results of my own name. So I found out, that my name is the same your great grandfathers was.
This is quiet funny, especially as the name Matthias was not very common these days your great grandfather lived.
In case you do not believe me please check my website
www.matthias-imber.deI am German and also live in Germany.
Best regards,
Matthias