I've known for quite a while that some of my ancestors were Kashubian from the Pomeranian / Pomorskie region (Lipusz, Koscierzyna). Recently, I had a breakthrough on my wife's ancestors and her paternal side came from right next door (Bobowo, Starogard Gdanski) and appear to have been Kociewie.
I have been able to find plenty of information on the Kashubian culture but almost nothing on the Kociewie culture. Does anyone know some good sources of information on Kociewie?