Do you have any idea how I might find a book from my long-ago childhood? I don’t know the title or the author (!). It was about grandparents, and it was probably published in the early 60s, possibly the late 50s. I’m pretty sure it was vertical vs horizontal…but that’s all I remember!
Maybe… ‘Grandmas and Grandpas’ by Low, Alice, published 1962. Random House.