1. In the past the Johan de Wit was one of the most important passengerliners to make a sea journey from Amsterdam to Djakarta in Dutch East Indies. She belonged to the Maatschappy "Nederland"
2.There were two of these powerful tugs, The Fighter and the Boxer, both working for the same company URS = Unie voor Redding & Sleepdienst located in Antwerp.
The two tugs had there working location on the River Schelde, the seaway to Antwerp, Belgium.