Albert Barnes Commentary 1 Chronicles 4:3

"And these were [the sons of] the father of Etam: Jezreel, and Ishma, and Idbash; and the name of their sister was Hazzelelponi;" — 1 Chronicles 4:3 (ASV)

Read: These are the sons of the father (that is, chief) of Etam (2 Chronicles 11:6), a city of Judah, not far from Bethlehem.