[Ger-Poland-Volhynia] Doberstein

[mlaudolff]

I am currently working with another Doberstein family who shared with me her grandfathers naturalizaton papers. On this paper he has recorded his last residency as Kallas, Russia. 

On the passenger listing  the name of the town their were from was recorded as Wielka Krzynka and then other the other is was worded as Krzynka Wielka. 

Would any one have any direction we should look to in determining the exact location of these villages?
Thank you

Tana Laudolff

Doberstein, Guenther, Richter, Kitzman, Friske