Numbers 26:19-21

Two of Judah’s sons, Er and Onan, died in Canaan. These were the family groups in the tribe of Judah: From Shelah came the Shelanite family group; from Perez came the Perezite family group; from Zerah came the Zerahite family group. These were the family groups from Perez: From Hezron came the Hezronite family group; from Hamul came the Hamulite family group.