Type D. - Erkner is a Dorf (Village).

Lvl I Pr. - Level I shows which Kingdom or State the place is located in. Erkner is located in Preussen.

Prov Brandbg. - The Province shows which Province or State the place is located in. Erkner is located in Brandenburg.

RB Potsdam - The Regierungsbezirk for Erkner is Potsdam. The Regierungsbezirk is a government district that is in hierarchy between the State and Kreis level.

Kr Niederbarnim - The Kreis for Erkner is Niederbarnim. A Kreis is a government district (similar to a U.S. county).

AG Kalkberge - The Amtsgericht for Erkner is in Kalkberge. The Amtsgericht is where the Lower District Court is located.

BKdo III Berlin - The Bezirkskommando for Erkner is in III Berlin. The Bezirkskommando is the District Military Command. You can look in the BKdo to find military records.

StdA Erkner [self] - The Standesamt for Erkner is in itself. The Standesamt is where the Civil Registration Office is located.

A Erkner [self] - The Amtsbezirk for Erkner is itself. The Amtsbezirk is the District Office.

ev. Pfk. 1 - Erkner has 1 evangelisch Pfarrkirche (Protestant parish church).