This is a fun thread, I love stuff like this
I don't remember the specifics (like exactly how much) but I am mostly Irish and German, and a lil bit Polish, Dutch, and Pennsylvania Dutch (I think I'm remembering everything lol)
My boyfriend is half Dutch, half hillbilly (haha, his mom isn't sure about her background) but I may look into it eventually when marriage/baby time comes, because I think it's interesting to know.