Hi, I wanted to post a reply to this thread since everyone was so kind to give me suggestions.
The great news is the cards that I soaked came off the pages (mostly) absolutely beautifully! The bad news is the seller had already ripped the Cobb and Demmitt short print off the page. Wish he would have let me soak it off. Oh well, still obviously pleased with the pickup. Here are some of the cards.
(favorite of the bunch)
(came off the backing nicely)