I don't have enough information to say exactly who he is. He could be the main character of the story, a person with his own dreams, hopes and problems. Maybe he is a kind - hearted man who loves Christmas and spreads joy during the festive season.
Hermione got a Time - Turner in the Harry Potter series. It was a very special device that allowed her to go back in time. This was crucial for her to attend more classes than were physically possible at once. For example, she was able to take both Muggle Studies and Ancient Runes at the same time slot. It also played a significant role in some of the adventures she had with Harry and Ron, like saving Sirius Black and Buckbeak. The Time - Turner was a magical yet dangerous object, as misusing time - traveling magic could have disastrous consequences, but Hermione managed it quite well most of the time.
No. The Nat Turner story was based on real events. Nat Turner led a slave rebellion in Southampton County, Virginia in 1831, which was a significant and tragic event in American history.
In some fanfics about Hermione and the Time Turner, it's often used as a plot device to fix mistakes. Maybe she goes back in time to prevent certain events from happening that had negative consequences in the original timeline. This can create a lot of interesting alternate storylines. For instance, she could stop the basilisk from being set loose too early, or she could change how she first met Harry and Ron, leading to different relationships and character developments.
Since we don't know which Jeanette Turner you mean, we can't be certain. However, if we assume she is a public figure, she could be someone who made an impact in her community. Maybe she was a teacher who inspired generations of students, or a businesswoman who helped boost the local economy. But again, this is all speculation without more information.