A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
Author: Kyria d'Oreyn
Athan Chandin is a man in Perrin's camps. He is good with a bow, but Perrin is annoyed by Chandin's servility.
Chandin waits in front of Perrin's tent to take Stepper's reins.
(Reference: Knife of Dreams, Chapter 26)
"Athan was a good bowshot or he would not have been here, but he had a truckling manner." (Perrin; Knife of Dreams, Chapter 26)