This, from an intro essay to Popper's Open Society and Its Enemies, is a particularly grim example of @kjhealy sociology of the typing wife - "I could not but smile when I saw an item in Sotheby’s catalogue photographed and described as “Popper’s typewriter.” I very much doubt that Karl ever touched its keyboard. He left it to Hennie, in what she described as the nightmare years, to type and retype countless versions and revisions." https://kieranhealy.org/blog/archives/2007/07/28/the-last-typing-wife/