This Beginner-level WordPress tutorial shows how to create a “child” page. A child page is a subpage that has another page as its “parent”. In some WordPress themes, links to child pages appear underneath a link to the parent page in the website navigation links — either in the sidebar or under the main horizontal navigation links. In other WordPress themes, you cannot see any links to child pages.
In either case, you can create a visible link to a child page by making a new link under one of your Blogroll categories. This tutorial also shows how to find the web address (URL) of a WordPress child page when it is not visible anywhere in the website navigation links.