The first thing I am left pondering with the Trade references is, where does the Department of Foreign Affairs and Trade fit in? I know Stephen Smith's name pops up, and Gough's for that matter, but, if it's still DFAT, where does Kevin Rudd feature between Prime Ministerships, and where's Senator Carr (Bob, not Kim)? The answer is that there is not a one-to-one ratio: there are four ministers associated with the functions of the department.
This would never have occurred to me if I hadn't started down this path.
Then you'll notice that this portfolio has been managed by a father and son. Frank and Simon Crean aren't the only father and son to have entered politics: Kims Beazley, Sir Alec and Alexander Downer (and Sir John before them), Doug and Larry Anthony, Sir Charles and Richard Court.. Still, interesting to note.