I just called up Kamienna Wolka on this site http://mapa.szukacz.pl/ and it said there were only 180 "osobi"(citizens)living there. In a village so small everyone there could be your genetic relative no matter what their name is. This is a peasant village and peasants didn't move around much until the modern era.Your family could have live in the one spot for 500 years. The records, probably, don't go back that far but it is a distinct possibility. When a bunch of people live in one place for a very long time they intermarry a lot and everyone is, at least, a shirtail relative of everyone else. It's not clear what your problem is. You are researching the Kaczmareks of Kamienna Wolka. Nobody else. Even if some of your relatives had moved away, if they had contact with their home village someone there likely knows where they ended up. Anyone who was carried off by the Germans and never heard from again will require a much different search technique. How you procede in looking for Stanyslaw and Michal depends on what you know of their history.