Recover deleted bookmarks/reading list from ipad, PLEASE HELP!!!

I'm new to the world of ipads and iclouds and made a huge mistake! I have been saving bookmarks and items to my reading list on my ipad for several weeks. Today I tried to export them using icloud. However, I noticed that someone else who used my ipad a while ago was still logged into icloud. In order to sign in to my account, I deleted her account which ended up deleting ALL of my bookmarks and reading list. I cannot recreate the lists and so I'm desperate for a way to restore them. Any ideas?

(PS: It would be very difficult to tract down the person who was previously signed into icloud).