1. Son of Hiel, the rebuilder of Jericho
In his days did Hiel the Beth-elite build Jericho: he laid the foundation thereof in Abiram his firstborn, and set up the gates thereof in his youngest son Segub, according to the word of the Lord, which he spake by Joshua the son of Nun. (1 Kings 16:34)
2. Grandson of Judah
And Tamar his daughter in law bare him Pharez and Zerah. All the sons of Judah were five. The sons of Pharez; Hezron, and Hamul. (1 Chronicles 2:4-5)
And afterward Hezron went in to the daughter of Machir the father of Gilead, whom he married when he was threescore years old; and she bare him Segub. And Segub begat Jair, who had three and twenty cities in the land of Gilead. (1 Chronicles 2:21-22)