Just some thoughts:
The family name Breek sounds Dutch. There are various Maria Breek entries in www.wiewaswie.nl
War Schanwe somehow looks like Warschau (=Warsaw) to me.... The Dutch use the same spelling as the Germans.
A Polish soldier in the Dutch Navy -> in Napoleontic and post-Napoleontic times possibly not as strange as it may sound. Though I don't know too much about the military.