Do you want to change the author of a post that has been created in WordPress? The easiest way to accomplish this is on the back end of wordpress (no plugin needed).
Make sure “screen options” are visible by checking the box
Go to the post in question, and change the author name. It will be displayed at the bottom of the page, under the text editor.
That’s It! You’re done.
Check out this great video we found online, if you would like to follow along: