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