Born Mathilda Rowena MacFusty, Mathilda was the only child to her mother and father. She's part of a large family with a good chunk of them dragon keepers, hunters and tamers. So naturally, Mathilda grew up with legends and stories of dragons. When she was old enough to speak, she could not for the life of her stay "Mathilda" and instead said "Tilda" which stuck to her well into her teens.
From an early age, Aislinn and Conall found that Tilda was a gentle soul, caring for life all around her. She cried when she accidentally killed a fly, and insisted on a funeral for the poor creature. Her mother and father humored her, seeing the good nature in their daughter. As Tilda grew older and visited her father's side of the family, she grew a tougher outer shell - many of her cousins, although gentle in their nature were absolutely terrifying to Tilda when she was younger. She quickly warmed up to them though, and loved their rowdiness at times. Still, Tilda liked to watch at a distance when they dealt with dragons. Of course her mother and father would never let Tilda anywhere close to the dragons, but she still harbored a curiosity for the beasts.
Her first bit of magic was when she was almost 11. She hated greens, and as much as her father tried to get her to eat them, Tilda rejected them even further. It was one night when Tilda was feeling especially stubborn and she found that once her father had put the greens in front of her, they disappeared. Tilda was shocked as much as her parents, though they figured out what was happening before she did. Soon after, she received her Hogwarts letter. Her mother and father took her to purchase her school supplies and soon after that, she was off to Hogwarts.
Tilda was sorted immediately into Gryffindor, before the hat even rested fully on her head. She happily joined the Gryffindor table and soon found herself some friends which she has kept close to ever since. Hogwarts found a studious student in Tilda - she found her true passion to be healing, and took a great interest in the Hospital Wing when one of her friends was injured. She's decided she would like to be a healer with a concentration in animals (magical and non-magical) and has worked especially hard in the classes she knew she had to excel in to become a healer. One could suppose it was a combination of influences from both her mother and her paternal cousins that propelled such a career desire. Her mother was a healer – that, combined with the beasts her cousins deal with produced the passion for beasts that resides in Tilda to this day.
In her fifth year, much to her surprise (and her family's), Tilda was made prefect. It was quite difficult at first, and sparked many rumors around the school. She was well aware that her family name was quite infamous, and some students were quite vocal about not letting her forget that her cousin had been expelled a few years prior. After her first year though, the young girl found her footing in her leadership role and is now generally left alone, having had the support of some of her fellow prefects.
Her seventh year at Hogwarts, Tilda was elected Head Girl, a position that she accepted with much enthusiasm. It was a bittersweet year, for it was her last one with the closest of her friends. It passed in a flash, and by the end of it, Tilda made up her mind to become a creature induced injuries healer. She decided on Hogsmeade instead of St. Mungos for the purpose of avoiding recognition and nepotism at her mother's former work. She procured an internship at Hogsmeade with references from her teachers. Soon after the internship is over, she happily accepted a position and now currently works as a permanent healer at Hogsmeade Hospital.