Add Author as User
You go to the current issue site (not the main Shenandoah page) and look for User–>Add New User

You add a new author with an email and username, so if it was Seamus Heaney it would be username sheaney and email

Once you have done the above steps you can now edit their profile and add their full name, biography, and image. You can get to an author’s profile under the user tab which list all authors for a given site. When scrolling with the mouse underneath the author’s name you should see a Edit button appear, click on this to get to the profile where you can add the author’s fullname, bio, and image.