Type D. - Gross Friedrichsdorf is a Dorf (Village).

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

Prov Ostpr. - The Province shows which Province or State the place is located in. Gross Friedrichsdorf is located in Ostpreussen.

RB Gumbinnen - The Regierungsbezirk for Gross Friedrichsdorf is Gumbinnen. The Regierungsbezirk is a government district that is in hierarchy between the State and Kreis level.

Kr Niederung - The Kreis for Gross Friedrichsdorf is Niederung. A Kreis is a government district (similar to a U.S. county).

AG Heinrichswalde - The Amtsgericht for Gross Friedrichsdorf is in Heinrichswalde. The Amtsgericht is where the Lower District Court is located.

BKdo Tilsit - The Bezirkskommando for Gross Friedrichsdorf is in Tilsit. The Bezirkskommando is the District Military Command. You can look in the BKdo to find military records.

StdA Gross Friedrichsdorf 1) Ostpr. [self] - The Standesamt for Gross Friedrichsdorf is in itself. The Standesamt is where the Civil Registration Office is located.

A Gross Friedrichsdorf 1) Ostpr. [self] - The Amtsbezirk for Gross Friedrichsdorf is itself. The Amtsbezirk is the District Office.

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