The names might very well be norwegian. At least scandinavian. Greenlund could be Grønlund (Grøn=Green). And Joakim (Joachim) is used as a boy's name in Norway. But I would also consider Denmark and maybe also Sweden if this is all you've got to start with.
These are the four Grønlund farms I've found in Norway: Property no farm name parish kommune fylke 84 Grønlund Vestby Vestby Akershus 53 Grønlund Askim Askim Østfold 67 Grønlund Hobøl Hobøl Østfold 96 Grønlund Hovin Spydeberg Østfold
But you will probably find some Grønlund farms in Denmark too (And maybe even in Sweden).