How to Structure Pages and Subpages

You could go about the actual structuring of the pages 2 ways:

  1. Create a Ministries page, leave it empty, and use it for only organizational purposes and set the rest as children…probably not the best method
  2. Create a Ministries Category, then create the pages (with no parents)

The menu is gonna work the same way regardless, pick the one you want first, put it on the menu (Appearance->Menus), and change the display text.

I’m not sure what exactly you’re looking for on point 2 of your question, but you may want to look into the Widget Logic plugin, it should be able to do what I think you’re asking to do, if you clarify a bit on that I wouldn’t mind helping out.