Rick, when you mentioned 5" bowl size I went back and took a second 'closer' look. Now, I'd say my grind size is just about the same--there's quite a bit of finer cuts down in there--just about like what I end up with.
Those yearbooks were pretty nice to get--you should be elated! I need to get 1949 and down and a few of the newer ones. It's hard to find a good single copy of the older ones to fit in here and there--unless one buys a whole bunch (partial set) just to get the one book your're after. I check Alibris every now and then and sometimes Ebay and even the Goodwills--might get lucky one day.