[Ger-Poland-Volhynia] How to find ancestors that stayed in Volhynia

[gswilson19 at aol.com]

I consider myself a fairly advanced researcher.  I know how to trace my 
ancestors from the U.S. backwards.  But there are two half sisters of 
my greatgrandfather that apparently stayed in Volhynia and I have no 
idea how to go about looking for them. I don't know if they followed 
the family to the different cities the parents lived in or not.

I am looking for
Eleanore Krueger  21 Aug 1858  Wladyslawow, Radziejow, Bydgoszcz, 
Poland

Ernestine Krueger  born 3 Apr 1856 Wladyslawow, Radziejow, Bydgoszcz, 
Poland

Parents were  Johanne August Krueger  Birth 1836 in Siarczyce, 
Wloclawek, Bydgoszcz, Poland   Death 18 Feb 1917 in Mieczyslawow, Kolo, 
Poznan, Poland

                        Karoline Anna Hermann  Birth 1835 in Goczki 
Niemieckie, Radziejow, Bydgoszcz, Poland   Death 18 Mar 1861 in 
Wladyslawow, Radziejow, Bydgoszcz, Poland

I don't know if these women died young, ever got married, or what.

Any suggestions on how to proceed would be appreciated.


Gail