Why "of course"? No Indians had anything to do with Thanksgiving (that was Native Americans and Pilgrims), and ... while I'm sure there were some Indian people who met cowboys (or even Indian people who were cowboys), they never really "crossed paths" in the way I think you're suggesting.
....
.... why am I bothering?
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Then explain to be about the history of museums,
seeing Cow and Indians standing next to each other by fact, and then they based they're in line of history onto entertainment...
example Is: Night at the Museum by Ben Stiller,
And also while and black based line on Cowboys & Indians meeting each other, first they hated each other and then later join forces teaming up....
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And every time into line history of entertainment based,
in between Sitcoms and Drama or Movies Indians are refer on thanksgiving holiday...
And the bottom line Pilgrims came to the rescue, show the Indians they both can get along by giving thanks on everybody or on themselves for the matter of fact...
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It doesn't matter which border or which side they're came from, and they came into groups of facts meaning...
And the bottom line of the beginning history of origin is known all wide as Indians to be refer by,
and the entertainment pop culture history books doesn't go by game change of life, it goes by the first line origin based on to be created and tell which project they're working on...
Which the Avatar film 2009,
is based around the first line origin of the beginning history re-capturing the Indians into similar way of life...
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I pretty much you people are mixing up the bottom of facts,
between Real life and Fantasy being fictional...
Because when Smallville, tv series bought in the reavel of the caves and Indians during Season 2, which I can remember their was similar dinner between The Kents and the Indians referrance to Thanksgiving...
And also Lionel Luthor, Alexander Luthor's father happen to piss off the Indians, into his past before the Superman/Superboy origin started...
But Lionel Luthor went from bad to good during Season 3 was start path backdoor, and Lex Luthor happen to raise actually showing he was pissing off the Indians alot more than Lionel did...