I cannot recall what, if any, cookbooks my late mother had in her kitchen probably none as her education in the 1930s/1940s included "Home Economics" classes during which she and all other girls of her generation were formally taught to cook with a view to them producing meals for their husbands and later children, or the basis of working as cooks in some institution. (My mother worked as a school cook for a few years.)
The first cookbooks to definitely enter the house were owned by my brother who was training to be a chef and for a while worked at a five star hotel in London.