Detail
Type D. - Bockel is a Dorf (Village).
Kr Rotenburg Hann. - The Kreis for Bockel is Rotenburg Hann. A Kreis is a government district (similar to a U.S. county).
See Ahausen - A See notation means the entry is dependent on another entry. In this case, Bockel is dependent on Ahausen, which should be consulted for additional information.