Detail
Type Hrgr. - Försten is a Häusergruppe (Group of Houses).
Kr Achim - The Kreis for Försten is Achim. A Kreis is a government district (similar to a U.S. county).
See Hagen-Grinden - A See notation means the entry is dependent on another entry. In this case, Försten is dependent on Hagen-Grinden, which should be consulted for additional information.