Who created a table

I think the only way for you to do that would be if you had audit logs running but I assume if you had that you would not be here asking this question. It can give you a general idea of what a user is doing. I know it can show if you create an app so I assume it shows table creation as well but I'm not positive.

I would contact Quick Base support and ask them if they are able to tell you who created that table. They may have more data behind the scenes.

There is also the option of just asking people. Put the question out there and I would think someone would say they made the table. It doesn;t sound like they lost a bunch of data or had any issue but I don't know the whole story either.