Charles Ellicott Commentary 1 Chronicles 1:41

"The sons of Anah: Dishon. And the sons of Dishon: Hamran, and Eshban, and Ithran, and Cheran." — 1 Chronicles 1:41 (ASV)

The sons of Anah; Dishon. —Genesis 36:25 adds, and Aholibamah the daughter of Anah. (Compare to 1 Chronicles 1:52, the chiliarch of Aholibamah.) Dishon, like Ammon or Israel, being the collective name of a number of tribes or clans, there is nothing strange in the expression, “The sons of Anah; Dishon.”