I mean, the Kitchen Sisters have a really fantastic radio (and now podcast) series called Hidden Kitchens which has a couple-few episodes about eating in midcentury America...
http://www.kitchensisters.org/stories/hidden-kitchens/
...but as far as I know there's nobody who's tried tracking down the people responsible for designing the recipes in the cookbooks for Better Homes & Gardens, Parade Magazine, those innumerable 32-64 page cookbooks full of recipes for Jello, Campbell's Soup, etc.