Abishur in the Bible Encyclopedia - ISBE

a-bi'-shur ('abhishur, "my father is a wall"): Great-grandson of Jerahmeel and Atarah, Jerahmeel being great-grandson of Judah. Abishur was son of Shammai, and was the husband of Abihail, and the father of sons (1 Ch 2:28,29).

Link: https://bible-history.com/isbe/A/ABISHUR/