Mimmy on Family Tree Circles

I am stuck on a few things? I think with all the people doing this family have added hear say and wrong family members and got it all messes up. I am stuck on William Miller Sr and His 1st wife Mary she was said to be Indian and that William was raised by them and married her moved to Trigg county. Now this is were the story is messed up they said that Mary and a few of the kids went on with the trail of tears to OK but then there is a Mary and William living in Trigg County after the trail of tears. This story has been told for years and years. I am also confused on the George, Priest and Craig this would be on my grandmothers side the Millers are my grandfathers side. Anyone with the same tree please help.