[Ger-Poland-Volhynia] Landkreis Ploehnen

[Dr. Frank Stewner]

There is a German link to that in Wikipedia: one has to look on the German Wikipedia under http://de.wikipedia.org/
and search vor "Landkreis Ploehnen" and go for the first result.
You will realise that that Landkreis was named for Plonsk after the "Polenfeldzug" late 1939 and existed only until the beginning of 1945. Otto is right again! It's like Litzmannstadt for Lodz.

Concerning Karolinenhof: there are 20 locations mentionned by Kartenmeister: 
the link is http://www.kartenmeister.com/preview/databaseuwe.asp

Frank