Ketterly, Letitia - Digory Kirke's aunt in The Magician's Nephew. Referred to as Aunt Letty.
Kirke, Digory - the Professor in The Lion, the Witch and the Wardrobe. Is present at the creation of Narnia in The Magician's Nephew. Plants the Tree of Protection at the western end of Narnia. Killed in a railway accident in The Last Battle when he is transported into New Narnia and greets Tirian after the last battle.
Kirke, Mabel - Digory's sick and dying mother in The Magician's Nephew. Is revived when Digory brings an apple from Narnia with magical properties and gives it to her to eat.