Albert Barnes Commentary 1 Samuel 14:49

"Now the sons of Saul were Jonathan, and Ishvi, and Malchishua; and the names of his two daughters were these: the name of the first-born Merab, and the name of the younger Michal:" — 1 Samuel 14:49 (ASV)

This listing of Saul’s children and chief officers follows the pattern of the later chronicles of the reigns of David and Solomon. However, the son called Ishui in this passage is called Abinadab elsewhere (as noted in the marginal references), and a fourth son, Esh-baal or Ish-bosheth, is omitted here.