Marvelous Meals with Minute Tapioca by Miss Dine-About-Town, 1938
Love this one! Miss Dine-About-Town makes it clear that she hasn't actually tried cooking any of the recipes, but has tried and loved them all as they were made by others. In other words, it's charming.
I The Menu Addict also adore its many menus, even including this nice vegetarian one.
Of course it's got lots of ideas for tapioca including many variations on tapioca pudding...