Thanks for posting that, Mike. It's a great resource.
I had to go looking for food ads and found a half dozen for "Grape=Nuts and Cream," but not the one that we have on a wall in our kitchen, from a 1915 issue of something called "The family Companion." It shows a child carrying a book-bag and walking with a huge dog, with the caption:
"To school well-fed, on Grape=Nuts and Cream." "There's a Reason."
I should scan it and post it here.
Eric