How do I delete a redundant posting?

By the time I posted the final instalment of my historical novel Balthasar's Elixir (The Titanic-era Diary of Evelyn Westcott), I had also posted two different lists of the characters, real and imaginary, who populate the book. I'd like to delete the first of the lists, but I can't figure out how!

Hugs to everyone,
Daphne