Thanks for your answer.
But I did not mean they died onboard.
They lived on a ship in stead of in a house in a city.
When they live in a city I can put the city as their home.
But how do you declare a "moving" home, a ship in this case, as their living place.
What I get now are places marked in red, because they dont have the correect mapping degrees.
Dutch: "woonde a/b ms xxx"
means:
Lived onboard the motorship xxx