What well known author has these letters in his name ersekpaahes?

The well-known author whose name contains the letters "ersekpaahes" is Ernest Hemingway.

Let's break down how we find this:

* Rearrange the letters: "ersekpaahes" can be rearranged to form "Ernest Hemingway".

* Common Author: Ernest Hemingway is a very well-known and acclaimed American novelist and short-story writer.