Sourdough, I suggest you post the addresses you found (in order to save us repeating the search) so that we can tackle them in our own time. I suppose most of the sites were in German, and, given a little time, I'd be prepared to look through them and maybe translate anything worthwhile, or post a precis here. The subject of Nazism and resistance is near to my heart, for although to the best of my knowledge none of my near relatives took part in one side or the other, I am German and I can't escape the responsibility of doing what I can (which is little enough) to prevent Germans (at least) from again perpetrating such a monstrosity as indiscriminately exterminating people of different (perceived) race, creed or political conviction, not to mention the starting of a world war. (The feeling of responsibility being reinforced by a sneaking conviction that, had I lived through the 'Thousand Years', what there is of my courage wouldn't have allowed me to join any resistance activities ...)