I will be creating numerous sites. Each site will have default users. These users are content creators i.e. having the ability to add and edit pages.
I want to save time by not having to recreate these users manually for every new site. Is there a way to do this?
Jons method will work if you want to share the users at all times, but if you just want to copy them from one to another, the easiest way is to create a SQL backup of the wp_users and wp_usermeta tables in phpmyadmin and then import them into each successive wordpress install.