[Ger-Poland-Volhynia] Unfamiliar place names

[Carol Hunter]

I have the following towns,villages or parishes that are completely 
unfamiliar to me. Are any of them located in this newsletter area? The 
spelling might not be accurate.
Kadast, Dubnov, Wolinion
Blankwitt, Annafeld, Germany
District Warszawskie, Nowym-Dworze Maz.
Rowno, Tuczny
Ost-Preussen
Derny, Oleck (Rovno area)
Juljanufka in the municipality of Dubno
Any help would be very much appreciated.
Carol Hunter

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