Geoffrey and Serena leave two kittens in the woods: Apollo and Charlie. But in a later scene, the children say that they only left one kitten in the woods (Apollo).
Cindy takes Corabeth's recommendation about being a 'fastidious wife' to heart and follows everything the book says. She doesn't question the fact that Corabeth herself is often rude and demeaning to her husband, their work, and their life on Walton's mountain, and is obviously not following what the book says herself.