[Ger-Poland-Volhynia] Locating records

[hhowell]

I need some advise and direction.  My wife's aunt was removed to Russia from Poland prior to WW I.  She returned after the war and reclaimed the family property.  Her husband had immigrated to the US prior to the war.

Her name was Augusta (Konn) Fenske, b 5 Jun 1879 m Ed Fenske.  Children at the time of her removal were Ed Fenske, b 7 Aug 1910 and twin girls born about 1912.  Family story is that the twin girls died while in exile.

Where could I start looking for records.

Herschuel Howell