What you need, katiescarlett, are some primary sources.
If you go to the library and find a book about the Trail of Tears, check the bibliography in the back for books/sources that sound promising. Then take the book to the circulation desk, or where ever you need to go, and request some of the sources from the back of the book through library interloan. The most that we ever need to pay is $1, so hopefully you wouldn't have to pay much either.
When you get your interloan books check the bibliographies in the backs for even more obscure, but fascinating writings. Once you have some actual names you may be able to find information online, too. If you keep following the threads back to original sources, either through library interloan or the web you will find some amazing materials.
It was a terrible, evil thing that our government did. I remember getting some materials on this when I had to teach that period of history. It would be good for you to put even more light on this - we should never forget what happened to these people.
After reading about the suffering caused by the Indian Removal Act I decided that Andrew Jackson was not entirely the hero that many think he was. Davy Crockett was strongly opposed to this, though. His opposition to the law ruined his political career, and he left Washington and went to Texas.........