The Baby Sister (Softcover) by Tomie de Paola: Tommy's so excited that his mom is having a baby, and he asks her for a baby sister with a red ribbon in her hair.
But he didn't ask for stern Nana Fall-River to come while his mom is in the hospital. Tommy and Nana don't get along very well, but when little Maureen is born, all the trouble is forgotten.
Perfect for 4 - 7 years readers and fans of family.