John Gill Commentary 1 Chronicles 2:29

"And the name of the wife of Abishur was Abihail; and she bare him Ahban, and Molid." — 1 Chronicles 2:29 (ASV)

And the name of the wife of Abishur was Abihail
Of the same name was a wife of Rehoboam, a daughter of his grandfather David's eldest brother, Eliab, (2 Chronicles 11:18)

and she bare him Ahban, and Molid ;
which are no more mentioned, they perhaps leaving no posterity.