Dear Genners,
It doesn't seem to be any database for the burials in Cologne. I found this
link and contact address:

http://www.sgk.de/index.php/friedhof.html

friedhof@...

I wrote there some years ago and asked about my uncle who is buried in
Cologne. They were very kind and I even got a photo >from the grave.

Best regards, Fred Zimmak, Stockholmm Sweden Fred.Zimmak@...