Grace Jones, daughter of Richard and Aurelia Jones, is the younger sister to Arthur, Vivian, and Colin, and the older sister to William. She often assumes a maternal role within her family, calming her younger siblings like Colin when he cries. Classy, gentle, ladylike, and graceful, she embodies traditional Victorian femininity and composure.

Grace maintains a close friendship with Eleanor Campbell. Upon learning William broke off his engagement to Eleanor, she reacts with shock and disapproval, stating he "disgusts" her, her loyalty reinforcing her sense of propriety. Her anger intensifies upon discovering William brought Emma to the family mansion, realizing Eleanor was used as a distraction and William was never serious about the engagement, highlighting her protective nature toward her friend and commitment to social decorum.

Grace has a sympathetic and pleasant suitor.