Andy says: there is much more to come, but it may well dribble out over a fair amount of time!
I was sitting with John after the service, at the table holding Jeff's remaining books (his friends had been encouraged to take one or more of his books, as a remembrance). John and I were chatting about a variety of things, and I told John about zooming in on that photo to see which book Jeff was reading; that I'd put it on my list of books to buy, so that I could try to get into that big head of Jeff's.
Then -- lo and behold! -- the book was before me: it had been passed over (perhaps it was the lamb's blood?), and left there for me to find. I got Jeff's personal copy -- and look forward to communing with Jeff over a favorite book, one more time....