Hestia Jones is a witch who was a member of the second Order of the Phoenix. Not much is known about Hestia apart from the fact that she was small with dark hair and rosy cheeks. She was a member of the Advance Guard and also helped to hide the Dursleys during the Second Wizarding War along with Dedalus Diggle. It is not known if she fought in the Battle of Hogwarts or if she survived the war, but as there was no mention of her death then we can presume that she survived.
Hestia is the main character in the second of the Order of the Phoenix stories on this wiki and also the main character in the story of her youth. Both of these are currently unfinished but will be uploaded as soon as they can be. Numberfour is writing them.