Don't throw it away. If you are not interested in keeping it in your files then check with your 'local' genealogical society to see if they can archive for you. You may check the local FHL to see if they have voluneers who can help you organize it a bit. If they can't or won't then consider donating it to the DAR in Washington DC or another historical repository. You never know what piece of information she had the only copy of and if you destroy it then it is lost forever.
Since you say it is unorganized and you don't know what line of Thorp's it is those of us who do Thorp research can't help without something to go on.