How do I see *which user* last updated a node? In admin/content, how might I override this display to list the User who last updated a piece of content. We can see the initial author and that's fine. But I'd like a running trail on who touched a node. 

What I've tried


Revisions: However, some Content Types use a field by Jquery Tabs which lose their content when going back to a certain revision.
Use Administration Views module to replace default content page for admins.

Find new View created by that module and add Relationship - 

Content revision: User


Then add field to your View "User: Name" and use that relationship on it. It will show you the username of the User who edited content last.