The Beta Sigma Phi website explains about their history and about their founding by Walter W. Ross, "In 1931, during the Great Depression, there was a need for an organization that could bring women together and expose them to a social, cultural and educational climate that was not available in those difficult times."
Beta Sigma Phi's President Walter W. Ross III in 1970, the copyright date for this cookbook, introduces the cookbook, provides a short history, and remarks that this particular cookbook is printed in "three regional editions to give you an excellent representation of recipes from your area, as well as recipes from chapters throughout the international membership."
Beta Sigma Phi cookbooks feature the names of members along with the name of the chapter they belonged to and their city and state.
I have to say this cookbook has the greatest titles for recipes. Such as these recipes for Devil's Delight and Devil Dip.