Numbers 26:19-21

Young's Literal Translation

¹⁹ Sons of Judah [are] Er and Onan; and Er dieth -- Onan also -- in the land of Canaan.

²⁰ And sons of Judah, by their families, are: of Shelah the family of the Shelanite; of Pharez the family of the Pharzite; of Zerah the family of the Zarhite;

²¹ and sons of Pharez are: of Hezron the family of the Hezronite; of Hamul the family of the Hamulite.