I've just read through and I'm having the same issue!
Talking it through with a friend and we came up with something like "flibble the parisian who lost their lucky button" or "blumph the librarian who was murdered by their brother".
so [name] the [job or place descriptor] who [something happened to that made them a ghost].
That's just ideas so it would be great to hear from the developer/others if we're anywhere close!