In 2265, she saw her brother-in-law off when he began a five-year mission of exploration in command of the USS Enterprise. She was with her husband and their three sons. (TOS: "What Are Little Girls Made Of?")
In 2267, she was residing at the Deneva colony with George and Peter when travelers from Ingraham B brought neural parasites that quickly infested the colony. Aurelan was attacked and infiltrated prior to Kirk's visit. Kirk discovered her in her home, extremely distraught.
Under heavy sedation in the Enterprise's sickbay, she became coherent enough to provide valuable information about the parasites, but the creature within her opposed this effort, delivering increasing amounts of pain. Eventually, unable to withstand the strain, she died. (TOS: "Operation -- Annihilate!")