Jaclyn doesn't remember very much about what happened to her mother. She doesn't even remember who her mother was. Her father ignored her when she asked and there weren't any pictures of her in their house. Come to think of it, Jaclyn wasn't even sure she ever met her mother. She only remembers her father.
In fact, her earliest memories were of having to sit in the back of her father's class at Hogwarts and only having a picture book, some paper, and a couple crayons to entertain her while her father taught his class. Now that she thinks back, she realizes that her father probably didn't have anyone who could watch her at home during that time, and she was much too young to take care of herself.
She remembers the looks people gave her when they first walked into class and saw her, a 3 year old girl with long black hair, sitting there in a desk that's much too big for her, wearing a green dress and black dress shoes, and drawing failed attempts at people and animals. She remembers being startled whenever she heard her father scolding a student, but over time she got used to his stern voice. She remembers loving to listen to the whispers of students and the soft bubbling of potions. She also remembers that she learned a lot just from sitting in his class. Nothing too advanced; mostly just the things that she thought had funny words. Being a kid, she just thought it was fun new vocabulary, but her father often would ask her a question that a student got wrong and praised her when she got it right and then lectured the class on how even a little girl could remember what he was saying. Then after his classes, he would usually buy her some sweets at Hogsmeade. Those were really the only times that her father had paid any attention to her, and she had loved it. It made her feel smart. It made her feel like she was wanted.
As she got older, her father would have her sit in the library while he taught his classes. By this time she was old enough to read, so that's what she did all day. It was very lonely since everybody in Hogwarts was much older than her. She didn't have anyone to play with; nobody who would let her act like a child should.