You might want to take a look at "Questioning Library Neutrality," edited by Alison Lewis. Of potential interest is a bibliography titled "Activist Librarianship: Heritage or Heresy? One Librarian's Two-Part List of Relevant and Thoughtful Reading for the Engaged Librarian and the Involved Citizen" by Ann Sparanese.

I'm not sure that this would address your idea of "unstable or revolutionary times," but it definitely lists many great sources for the study of radical librarianship.

Some other sources of information along the same lines: Revolting Librarians and Revolting Librarians Redux, and Alternative Library Literature.