Hi!
All this names are normal for older people here (Germany). Only
Jacoba is rare (
Jacob or
Jakob is more frequent) , Christiaan and Nicolaas we write
Christian and
Nicolas,
George we write
Georg and we speak it different from your description (I can't explain it in English). The name susanna knows everybody, but
Susanne is more frequent. And
Maria and
Johannes are frequent names for kids, too. I don't think they are beautiful names, but for my grandfather or -mother they are really ok. But Cahrissa for example is a really stupid name in germany (I know Klarissa but not Cahrissa). I think you can't compare names from different countries, the languages are too different.