I have the birth date of my grandfather Johann Janke - 8. Febr. 1857 in Koloni Duninow Standesamt Gostynin. His mother was Eva Patzer his father David Janke. I learned that Gottfried and Peter Patzer Confirmation date: 11. Apr. 1809/20. Apr. 1811 were from Bilaw - Bielawy (Nagold, Nagodowo NW of Gostynin), and Michael Janke from Kol.[ony] Duninow Confirmation 26. Apr. 1808.