| • | Hermann Allmers Award for Regional Studies of the Herrmann Allmers Society (1997) |
| • | Medal of the City of Wilhelmshaven (1991) |
| • | Cross of the Order of Merit of the Federal Republic of Germany (1986) |
| • | Medal of the Oldenburger Landschaft (1985) |
| • | Indigenat of the Ostfriesische Landschaft (1983) |
| • | External Member of the Royal Dutch Academy of Sciences, Amsterdam (since 1982) |
| • | Member and Vice Chairman of the Administrative Board of the Roman-Germanic Central Museum, Mainz (1980-1991) |
| • | Full Member of the German Archaeological Institute, Berlin (since 1978) |
| • | Member of the Roman-Germanic Commission (Römisch-Germanische Kommission) of the German Archaeological Institute, Frankfurt/M. (since 1974) |
| • | Member of the Historical Commission for Lower Saxony and Bremen (since 1973) |
| • | Corresponding Member of the German Archaeological Institute, Berlin (since 1963) |
| • | Member of the Archeological Commission for Lower Saxony |
