Well, there was the root of your problem all along, calendar and battery notwithstanding. You can either command-drag your name from your menu bar - just off the bar 'til you see an "X" indicator, and then release...no need to trash it - or uncheck the box in System Prefs. OK, I got my name off. I don't understand where in system prefs I could have unchecked anything to take my name off that way, though.
In System Prefs > Users & Groups > Login Options. (Link)