Cross reference
1 Samuel 14:51
51 Kish was the father of Saul; and Ner the father of Abner was the son of Abiel.
1 Samuel 9:1
1 Now there was a man of Benjamin, whose name was Kish, the son of Abiel, the son of Zeror, the son of Becorath, the son of Aphiah, the son of a Benjamite, a mighty man of valor.
1 Samuel 9:21
21 Saul answered, Am I not a Benjamite, of the smallest of the tribes of Israel? and my family the least of all the families of the tribe of Benjamin? why then speak you to me after this manner?