[Ger-Poland-Volhynia] Location of village Keziwagora or Krzywagura, Russia 1908-1911

[Bruce Stange]

I am looking for information on my Grandparents village Gottfried Stange b.
May 20, 1885 in Pinino, Poland and Augusta Gittner b. May 18, 1891. Ellis
Island data shows Gottfried from Keziwagora, Russia 1911 and Augusta from
Krzywagura, Russia 1908. I was told Gottfried, living in Detroit wrote home
to ask is Father for the name of a woman he could marry from the home town
and Augusta living in Cleveland was that young woman. They were Wed in 1914.
I also have a photo of Gottfried in a uniform and was told he was forced
into the military for training prior to 1911. Gottfried's Father was
Heinrich Stange b. Oct 12. 1859 in Harburg Hanover. The story is that
Heinrich moved to Poland to farm the land and built up a large farm until he
was forced to leave it. I believe these villages are near the Vistula River
but cannot locate them. Any information would be helpful.
Bruce Stange