Twista Sunshine
 

I don't know if she's famous or anything. I didn't know where exactly to put this.

Has anyone heard of her, or has her on their horse's papers?

I've tried to look her up, but I can't find anything on this mare.

She's on one of my horse's papers that's why I ask.

Not on any that I know of & I have to say I've never heard of her... hmm.
What breed is she, and do you know if she's registered or not? Also the breed of your horse could lead to some answers?

Never heard of her. :/
Try looking up with her breed registry.