On: I found my Grandpa’s notes 20 years after he died (2020)

[pnutjam]

You might reach out to your local library or nearest university library. Many of them have some sort of local document repository. This is the sort of thing that should at the very least be photographed page by page. They would have done microfiche back in the day. Even without OCR, it's valuable.

[zedr → pnutjam]

He could also donate it to the Internet Archive's collection of documents.