1 Chronicles 2:20

Abigail bore Amasa; and the father of Amasa was Jether the Ishmaelite.

Caleb the son of Hezron became the father of children by Azubah his wife, and by Jerioth; and these were her sons: Jesher, Shobab, and Ardon.

Azubah died, and Caleb married Ephrath, who bore him Hur.

Afterward Hezron went in to the daughter of Machir the father of Gilead, whom he took as wife when he was sixty years old; and she bore him Segub.

Segub became the father of Jair, who had twenty-three cities in the land of Gilead.

Geshur and Aram took the towns of Jair from them, with Kenath, and its villages, even sixty cities. All these were the sons of Machir the father of Gilead.