As others have pointed out, there are still footmen, peddlers, Mudlarks (the recently published book about it is great by the way), nursemaids, troubadors and even arguably privateers working away in the World today. Their numbers may be fewer, their fortunes and status somewhat smaller, but they haven't disappered.
Some have also pointed out that in many cases the role exists, it's just the name and nature of the job that has changed slightly over time.
So then we come to the definition of "obsolete", and it's this which prevents me from editing the list and removing these: I would argue "no longer used" does not apply, and somebody else would argue they are "out of date", which arguably is true.
The community at Wikipedia is not a friendly one to engage with in such debates, IME - it's defensive, cliquey and closed. As a newcomer, there is a good chance I'd end up losing the argument. So, I don't edit Wikipedia. Ever.
What they have produced is in the whole, remarkable. However, lists like this make me sad as they remind me of the closed shop nature of being able to contribute.