Genesis 38:4

Later, she conceived again, bore another son, and named him Onan.

and Judah's sons Er, Onan, Shelah, Perez, and Zerah. (Technically, Er and Onan had died in the land of Canaan.) Perez's sons were Hezron and Hamul.

The descendants of Judah originally included Er and Onan, though Er and Onan died in the land of Canaan.

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And she conceived again, and bare a son; and she called his name Onan.

and Judah's sons Er, Onan, Shelah, Perez, and Zerah. (Technically, Er and Onan had died in the land of Canaan.) Perez's sons were Hezron and Hamul.

The descendants of Judah originally included Er and Onan, though Er and Onan died in the land of Canaan.