The Masovian Voivodeship is near Warsaw, quite some distance from the Posnan area where my Gawronski relatives originated. If I remember correctly I got in contact with a Father Gawronski, whose name I found on line, and his roots were from the Warsaw area. I wish you luck in your search. If you hear from anyone from the voivodeship of Znin or the Posnan area, please put them in contact with me. I would really appreciate it. Thanks and Merry Christmas!