Alsterstern (posted here June 13) and Havelstern have both been in port but loaded cargo in Saint John, NB.
Thanks to an anonymous reader, we have a succinct explanation of their names:
"- Alster, Havel and Trave are rivers in Germany. Their names commonly are associated with larger German cities: Alster & Hamburg, Trave & Lübeck/Kiel, Havel & Berlin.
- Stern means Star, so the ships' names would be Star of Havel,..."