Grace Pearl Ingalls is the youngest child of Charles and Caroline Ingalls, and their last biological child. When Caroline first told Charles that she was pregnant, he hoped for a boy and Caroline feared how Charles would react if the child was a girl. When Grace was born, Charles was just as happy as if she had been a boy. Grace filled the baby role in the Ingalls family, which had always belonged to Carrie when she was long past that age. Grace Ingalls stayed in Walnut Grove when the Ingalls lived there and of course went with them when they left Walnut Grove. Grace loved Mary and Laura.