Here's a reference to comments from a Tolkien lecture in A Guide to Old English (the only other T. reference, if I trust the search results from the 2nd edition on the IA). It's a slight pity it's not a direct quote as in the notes from the lecture in northman's book, but I'll not complain

I could very much imagine Tom Shippey saying things like this!

An absolutely stunning haul! And a few things here for me to add to my wishlist