Other sources include the Radcliffe Culinary Times in the vertical files of the Newcomb College Center for Research on Women's small journals collection. Further, the Center directs an annual program, the Culinary History Symposium. The tapes and flyers from the programs may provide useful information. To continue the brainstorming, it may be interesting to explore or speculate why some phrases, such as the way to a man's heart is through his stomach, came about. It may also be informative to know what is covered in etiquette classes and who attends them.
Personal interviews are an excellent primary source of information.
You could compare and contrast the women that enjoy the cooking and those who don't.