If you could check on something for me, there was a story I was told by my dad. It took place around WWII. The story go's The 101 wild west show was on a train preforming in you neck of the world. Then it was stopped by the German Army and kicked the every one off the train. As far as my dad knew some of the Ponca Indians stayed over there on that side of the world. And the Poncas did not return home, they decided to live over there.
This is from Wikipedia, perhaps it relates to the story above:
In 1908, when Buffalo Bill and Pawnee Bill combined their shows into an extravaganza that broke records at Madison Square Gardens in New York City, the Miller Brothers took their show abroad. In England, the British military confiscated most of the 101’s horses, stagecoaches, and automobiles to build up for war, as tensions were building related to the pending World War I. When the Millers' show toured in Germany, authorities arrested some of their Oglala Sioux performers on suspicion of being Serbian spies, they were never seen again. A frantic Zack Miller managed to get the rest of cast out of Germany via Norway, and then to England. Once in London, however, he had difficulty finding a steamship that would sell his people passage. Finally, he obtained passage for his cast on an American ship. Once the cast returned to Oklahoma, the eldest brother Joe Miller refused to pay the Indian cast overtime. As a result, the entire Indian cast quit the show.