The Goplen family come from a place in Norway, near to Synnfjellet Mountain, just west of Lillehammer. Their name is the name of a farm there, which is named after the "Gopla" flowers that grow there. They are a kind of bearded bluebells.
They grow only in a small area of Norway, which includes the vicinity of Synfjellet Mountain, in the vicinity of Nordre Land (Torpa), and Etnedal and Vestre Gausdal, ofValdres, but they don't grow anywhere else.
There was once a farm named "Goplerud," in Sor Aurdal of Valdres, and it dated from at least the mid-1700s, so the goplas proabably grew there at the time it was named.
A current gazetteer shows no "Goplerud" or "Goplen" farm in Norway. It does show a Goplsaetra in the Synnfjellet vicinity
and also a lake named "Goppollvatnet," a bit farther north and
east.