Hannah was a seventh year during Dumbledore's Army and the Year of Darkness.
Hannah began waiting tables at age 8.
Hannah later became the owner of the Leaky Cauldron. She also married Neville Longbottom. They have five children; Peggy, Trevor (twins), Ernest, Lavender and Tiresius. They orignally planned to stop having children after Lavender was born, Terry was an accident.
Hannah can carry four full pint glasses in each hand with out magic and keep up to six tables worth of orders in her head at one time.
Hannah's first appearance; "Pretending to take notes, he shifted a little on the bench, poking Hannah Abbott gently in the ribs. She jumped, then shot him a glare that could have wilted every plant in the greenhouse. He sighed. They had been partners in Herbology since the first year, but for some reason, she was ignoring him today. Neville would have been willing to write off her sudden iciness to the endless incomprehensible vagaries of female behavior, but that was not an option under the circumstances."