Displaying post/page info on a homepage using get_post()

I worked it out, when in the admin area of a page/post you can find the post ID in the browser URL:

http://localhost/newsite/wp-admin/post.php?post=1807&action=edit

So the previous dev simply uses this page as a ‘parent’, and refers to it as they set $id = get_post(1807);

Now the query find posts/pages that a ‘children’ of this page.