M'yri'ah was a Green Martian living with her husband and daughters T'ania and K'hym on Mars. However her family was attacked by the White Martians, a subterranean race who then wiped out dozens of their people in a Martian holocaust. She along with her two daughters were killed leaving only J'onn left alive.
- "Strange Visitor From Another Planet" (flashback)
Behind the scenes
- M'yri'ah J'onzz's first appeared in Martian Manhunter #3 (July, 1988) and was created by J.M. DeMatteis and Mark Badger.