As far as I know, Henry Baker is still with us. I had a dream where I interviewed Wirth for like 20 hrs so we could clone him with an LLM. We need to grab as much video interviews from folks as possible.
henry baker has made many great contributions, but last time i talked to him, he was waiting for somebody to start paying him again in order to do any more research
but i'm sure he'd agree his achievements are not in the same league as wirth's