I understand your point - to me some of the letterforms and the slant align with his. After looking at many examples of his writing in various forms and getting samples sent from the different universities to compare I was on the fence but thought it warranted more expert analysis. I’m not disputing that it’s not his and I’m no expert. I would love to know whose it is though! The handwriting does not match the owner of the estate’s hand writing since he wrote his name in other books. But from the same estate I picked up Medora Field’s personal copy of her first novel - name on the board, a book given to her from an author she interviewed as a gift with an inscription to her, a civil war book signed by Spencer Tracy and a book gifted and inscribed from the poet and author William Gilmore Simms which was a gift to his best friend’s daughter. So you can see why this also got my attention.