@BrendaSeitz It's great that you want to find out more, but there's nothing to give credence to your story that there was a plane that crashed near your creek, nor what it was carrying. It might be true, but right now it's just what someone has told you. Stories tend to get confused and exaggerated over time. As I say, local libraries will be your best bet. Right now, all you really know is you found a cup in a creek, not how it got there.
It's extremely unlikely your cup has anything to do with the canopy you found. Both are good and interesting discoveries! It would be great if you could…