Type LGem. - Niedeck is a Landgemeinde (Rural Community).

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

Prov Westpr. - The Province shows which Province or State the place is located in. Niedeck is located in Westpreussen.

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

Kr Karthaus Westpr. - The Kreis for Niedeck is Karthaus Westpr. A Kreis is a government district (similar to a U.S. county).

AG Karthaus Westpr. - The Amtsgericht for Niedeck is in Karthaus Westpr. The Amtsgericht is where the Lower District Court is located.

BKdo Neustadt - The Bezirkskommando for Niedeck is in Neustadt. The Bezirkskommando is the District Military Command. You can look in the BKdo to find military records.

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

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

Vgl Nideck - A Vgl (Vergleiche) notation lists places with similar spellings that you may want to compare. In this case, you may want to try searching for Nideck.