Diefenbaker's hand-written note indicating this is his mother's cookbook. The cookbook is dated 1931.
The most used page? It's certainly the most splattered, tomato sauce and all.
Other cookbooks in the Diefenbaker archive, these belonging to Dief's wife Olive:
Canadian Wild Game Cook Book - Jamie Duffield Pearson (1965)
Food the Really Schmecks - Edna Staebler (1968)
The Fireside Cook Book - James Beard (1949)
Saskatchewan Sportsman's Gourmet Guide - Henrietta Goplen (1968)
Chinese Recipes and Cookery - Li Yung (1972)
The Scots Kitchen - Marian McNeill (1961)
Jewish Cooking for Pleasure - Molly Lyons Bar-David (see inscription below)