This Bible contradiction is from the Skeptic's Annotated Bible.
Verses
Esau was Korah's father.
Genesis 36:14 View context
This is so important that it is repeated three times in Genesis 36.
Genesis 36:5
And Aholibamah bare Jeush, and Jaalam, and Korah: these are the sons of Esau, which were born unto him in the land of Canaan.
Genesis 36:14
And these were the sons of Aholibamah, the daughter of Anah the daughter of Zibeon, Esau's wife: and she bare to Esau Jeush, and Jaalam, and Korah.
Genesis 36:18
And these are the sons of Aholibamah Esau's wife; duke Jeush, duke Jaalam, duke Korah: these were the dukes that came of Aholibamah the daughter of Anah, Esau's wife.
1 Chronicles 1:35
And 1 Chronicles agrees, saying:
The sons of Esau; Eliphaz, Reuel, and Jeush, and Jaalam, and Korah.
Eliphaz was Korah's father.
Genesis 36:15-16 View context
These were dukes of the sons of Esau: the sons of Eliphaz the firstborn son of Esau; duke Teman, duke Omar, duke Zepho, duke Kenaz, Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah.