Format explanations etc.
Duża Cerkwica Gross-Zirkwitz (Złotów) 5332 1734 BY
Civil registry
USC Kamień Krajeński
State Archive in Bydgoszcz
B 1874-
M 1874-1901 1903-1906 1909-
D 1874-1908 1910-
LDS microfilms
BMD 1874-1876 1189049 #2-4
BMD 1878-1883 1417519 #3-20