Show "Author" on page similar to "Posts"

Currently setting up a training website. Different Authors are contributing to content that is placed on a Page not on Posts

I like the way the Author gets displayed on the bottom of Posts. I would like the same functionality for Pages.

Secondly after the above, I would like to setup a page that gets generated on the fly similar to the page type of Site-Map is generated, but listing Author names so a student can just click on the name of an author and see all of his/her content.

Third, if the above 2 can be accomplished, possibly add the author listing to the bottom of the Site-map page.

Thank you in advance, I know I’m kind of asking for 3 items, but they are all related and in order of priority.

John