While waiting for Wayne and Audrey to acknowledge Round 9, we might as well start the more prompt people on Round 10.
BPD 2, the Final Chapter
Celebrating that quintessential man of letters, MARK TWAIN aka Samuel Clemens.
The secret letter is
HCategories:
1. A place where Twain resided
2. A literary influence for Twain
3. A Male Character with a name other than "Huckelberry"
4. A Female Character
5. A Love Interest (and there are a few)
6. A Real Life person who had an impact on Twain's Life, not mentioned already in your choices
Have fun! Standard disclaimers about first and last letters apply.