Autobiography of Mark Twain Volume 2 by Benjamin and Harriet Elinor pdf free download. Editorial work on the Autobiography of Mark Twain began some eight years ago and is expected to continue for another two. But acquiring the collective skills, expertise, and materials that allow us to do the work has taken much longer: more than four decades of editorial labor on every aspect of Mark Twain’s writings, made possible by the continuous support, since 1967, of the national Endowment for the Humanities, an independent federal agency.