They could be original characters created by the fanfiction writer. Just two fictional people with their own personalities and backstories that the writer has developed specifically for this story.
I'm not sure specifically as there could be many interpretations. It might be about a baby named Thomas in a glade, perhaps with some sort of adventure or discovery in that setting.
Survival is a common theme. Since she's in the glade, she has to figure out how to find food, water, and shelter. Another theme is mystery. The glade itself is often portrayed as a place full of secrets. For example, there could be hidden passages or unknown powers.
One interesting plot could be the baby's discovery of a hidden path in the glade. It might lead to a magical place filled with strange creatures and beautiful flowers.
Obviously, Baby Thomas would be one of the main characters. But without more information, it's hard to say who else might be. There could be characters that are guardians or friends in the glade.
Hayden is a character in American Horror Story. She has a complex and often devious role in the series, getting involved in various dark and twisted storylines.
I don't know the Tim Hayden story, so I can't determine its significance. It could be significant to his family, friends, or the people directly involved in his story. For example, if he overcame great hardships, his story might be an inspiration to others who are facing similar situations.
I'm not sure specifically which 'Hayden' in a particular Christmas story you're referring to. There could be many characters named Hayden in various Christmas - themed stories, books, or movies.