Numbers 26:19
Genesis 46:12
                            
Perez’s sons:
Genesis 38:1-10
                            At that time Judah left his brothers and settled near an Adullamite
1 Chronicles 2:3-8
                            Judah’s
Treasury of Scripture Knowledge
Summary
                            The sons of Judah were Er and Onan: and Er and Onan died in the land of Canaan.                        
                    Er and onan
General references
Bible References
Er and onan
                                        Genesis 38:1                                        
                                                                                                                                At that time Judah left his brothers and settled near an Adullamite named Hirah.  
                                    
                                        Genesis 46:12                                        Judah’s sons: Er, Onan, Shelah, Perez, and Zerah; but Er and Onan died in the land of Canaan.
Perez’s sons: Hezron and Hamul. 
 
                                    
                                                                                                                                Perez’s sons:
                                        1 Chronicles 2:3                                        
                                                            
                        Judah’s sons: Er, Onan, and Shelah. These three were born to him by Bath-shua the Canaanite woman. Er, Judah’s firstborn, was evil in the Lord’s sight, so He put him to death.   
                                    General references
                                        Numbers 1:26                                        
                                                            
                        The descendants of Judah: according to their family records by their clans and their ancestral houses, counting the names of those 20 years old or more, everyone who could serve in the army,