וּבְנֵ֖י עֵ֣שֶׁק אָחִ֑יו אוּלָ֣ם בְּכֹר֔וֹ יְעוּשׁ֙ הַשֵּׁנִ֔י וֶֽאֱלִיפֶ֖לֶט הַשְּׁלִשִֽׁי׃
And the sons of Eshek his brother: Ulam his firstborn, Jeush the second, and Eliphelet the third.
Read midrashic interpretation of I Chronicles 8:39: and classical rabbinic exegesis.