TSK · Numbers 32:41

Jair, son of Manasseh, took all the Argob region as far as the border with the Geshurites and Maacathites(namely Bashan) and called it by his name, Havvoth Jair, which it retains to this very day.)

He had thirty sons who rode on thirty donkeys and possessed thirty cities. To this day these towns are called Havvoth Jair– they are in the land of Gilead.

Later Hezron slept with the daughter of Makir, the father of Gilead.(He had married her when he was sixty years old.) She bore him Segub.