and only 2 of them were available to the public to order an e-copy of

I think you could negotiate with these people because you have a priceless resource in your grandfather's book. I bet the scholars at Oxford would love to get a look at that. That's a primary source. You are fortunate. Let them look, but not borrow :)) I don't trust them.

Thank you for reading. I love your comment. It's interesting how the search for roots is almost universal. In the past there were oral traditions that handed down culture from generation to generation. You are lucky to have that book. What a treasure. Most of us have to peck around at unreliable public records.

Contact Oxford. I think you might get something there. Good luck!