Susy Clemens
...that at age 13 Susy Clemens wrote a biography of her father Mark Twain that was included in his posthumously published work, Chapters from my Autobiography?
...that at age 13 <b id="mwDIE"><a href="./Susy_Clemens" id="mwDII" rel="mw:WikiLink" title="Susy Clemens">Susy Clemens</a></b> wrote a biography of her father <a href="./Mark_Twain" id="mwDIM" rel="mw:WikiLink" title="Mark Twain">Mark Twain</a> that was included in his posthumously published work, <i id="mwDIQ"><a class="mw-redirect" href="./Mark_Twain's_Autobiography" id="mwDIU" rel="mw:WikiLink" title="Mark Twain's Autobiography">Chapters from my Autobiography</a></i>?