I was responsible for doing this for a news radio network 30 years ago. Mostly I was able to stay on top of things, but Princess Diana really ruined my weekend. No-one was ready for that one.
Was there any kind of cutoff in terms of age? Were there obituaries maintained for child actors and singers? So many questions but it's a very interesting topic!
Any notable persons named in recent news reports for matters of health were kept near the top of the pile.
There was nothing pre-prepared for Princess Diana's death as she was just too young and healthy, despite her incredible fame.