2:18 Caleb son of Hezron fathered sons by his wife Azubah (also known as Jerioth). Her sons were Jesher, Shobab, and Ardon.
2:19 When Azubah died, Caleb married Ephrath, who bore him Hur.
1 Chronicles 2:24
2:24 After Hezron’s death, Caleb had sexual relations with Ephrath, his father Hezron’s widow, and she bore to him Ashhur the father of Tekoa.