Good question Rick. You can do that by using Staff Groups. Basically these are like post categories, but for your staff members instead of for posts.
When you’re creating or editing a staff member, look in the right hand column and you’ll see a box for staff groups. You can create one at the bottom of that box by entering a name for your group there and pressing enter on your keyboard. Groups that have previously been created will be available to select by checkbox there. You might need one for board members and one for your staff as an example.
Once you’ve added all your members to their groups, then you can add the groups to the navigation. To do that, go to the Appearance section and select Menus. In the left hand column hopefully you’ll see staff groups. If you don’t, then click the “Screen Options” tab in the top right hand corner and check the box next to Staff Groups.
Now you should see your staff groups in the left hand column. Add those groups to your navigation menu just like you would a page or post category and save your menu. That will create a “page” for each group.
If you only need one list, you can use the staff page template and skip the staff groups altogether. To use it, just create a new page and look in the right hand column for the attributes box. In that box, choose the “Staff” template from the drop-down and publish your page. That will create a page that lists all your staff from all groups.
Let me know if you have any questions,
Bill