This is literally impossible.
Not impossible, but very hard to create huge butterflies. All the ones I can think of deal with archaeolgy and what we know of the ancient world and how people act about it.
When did they discover Pompeii? King Tut's tomb was unearthed in 1922, IIRC. What about the beginnings of the unearthing of Babylon?
Each of those things, if something happens just befoer the eruption of Vesuvius, or if King Tut dies some other way, for instance, will trigger some stories that could perhaps slightly increase or decrease a writer's reputation, or get someone interested in archaeology.
For instance, there was a short story I read somewhere between 4th and 6th grade about Pompeii int he last days with this boy and his dog, and this dog had this loaf in his mouth or something when the reuption hit, and people years later were unearthing it and wondered what the dog was doing carrying that around at a time like this.
Mind you, I don't know if the story was even real, let alone recall the name of the short story. However, suppose for a moment it was real. Some writer got to write about it who wouldn't if the dog didn't have that loaf in his mouth; this inspiration helped him or her in some small way. Some kid might have become interested in archaeology who wsn't before.
The thing is, that story irtself isn't likely to be the only thing to launch a career, and doesn't mean the person would be famous; my uncle wasn't the only 8-9 year-old boy to see a picture in a magazine of children with club feet in the mid-50s. He remembers that being part of his inspiration to become a doctor, but that wasn't the only thing that inspired him, and he's just a very good doctor who has done well for his family and been an excellent profesional without any real fanfare. Which he might well have done without the magazine article, something else might have inspired him later.
So, could a really cool story spark someone's interest in becoming a great archaologist who discovers something else amazing? Or who went into another field OTL? Sure. But, it's not likely that, for instance, Margaret Thatcher's father rhears some awesome story about King Tut because of something on his mummy that wasn't OTL, becomes an archaologist, and his daughter becomes a real life Indiana Jones.
Edit: Cool, I found the Pompeii story.
https://mskmoodle.zis.ch/pluginfile.php/12569/mod_resource/content/1/The%20Dog%20of%20Pompeii.pdf WOw, excavation began in the 18th century. Still, the King Tut example makes more sense, anyway, and it did bring back some fun, fond memories of that age for me. so it was worth it.