American Gods, Neil Gaiman - Wednesday, Whiskey Jack: "When the people came to America they brought us with them. They brought me, and Loki and Thor, Anansi and the Lion-God, Leprechauns and Kobolds and Banshees, Kubera and Frau Holle and Ashtaroth, and they brought you. We rode here in their minds, and we took root. We traveled with the settlers to the new lands across the ocean. The land is vast. Soon enough, our people abandoned us, remembered us only as creatures of the old land, as things that had not come with them to the new." . . . "This is not a good country for gods. My people figured that out early on."
This has to be useful in a story somehow.
No idea how. But I'll have to find something. I wonder if Gaiman ever read Puck of Pook's Hill?