Jenny O'Malley is the youngest sister of Nellie O'Malley and the adopted sister of Samantha Parkington. Jenny is the youngest of the three O'Malley sisters. She is six in Samantha Learns a Lesson and has a high, flutey voice and blue eyes. Jenny has a beloved doll named Louisa-Jane and greatly loves stories, especially fairy tales. Unlike Nellie, she and Bridget are easily adjusting to their new life with the Gardeners; this is most likely due to their age. However, she does miss her parents and cries in her sleep about them. She and Bridget have a private tutor after being adopted, rather than attending school.