1 Chronicles 2:3
The sons of Judah; Er, and Onan, and Shelah: which three were born to him of the daughter of Shua the Canaanitess. And Er, the first-born of Judah, was evil in the sight of the LORD; and he slew him.
Genesis 38:2-10
And Judah saw there a daughter of a certain Canaanite, whose name was Shuah; and he took her, and went in to her.
Genesis 46:12
And the sons of Judah; Er, and Onan, and Shelah, and Pharez, and Zerah: but Er and Onan died in the land of Canaan. And the sons of Pharez were Hezron, and Hamul.
Numbers 26:19
The sons of Judah were Er and Onan: and Er and Onan died in the land of Canaan.
1 Chronicles 9:5
And of the Shilonites; Asaiah the first-born, and his sons.