How to edit Team Members from Drupal site
You can probably find what you need at /admin/content. What you are looking at is the views interface to build a list - the list doesn't exist anywhere but in your database, and it won't exist in the database as a list, it will just be separate rows in the database table, so don't bother looking there. The list is build from the database, using the interface that you have shown a screenshot of.

You should be able to find the various items you want at /admin/content. You may have to filter by a content type, depending on how much content is on your site.