Mireh, born in late 2373 or early 2374, was the daughter of Starfleet counselor Phillipa Matthias and her Bajoran husband, Chon Sibias. She had an older brother, Arios. (DS9 - Mission Gamma novel: This Gray Spirit)
Mireh, while in one of Deep Space 9's child-care facilities, wanted to draw the "wormhose", much to her teacher, Gavi's amusement. When asked if she could say "wormhole", she defiantly replied "yes", but didn't offer to say the word, which made Gavi laugh.