Bishop Charles Frederick Frazier Mackenzie's (1825–1862) grave on an island in the Shire River, in Malawi, from a sketch made on the spot in 1876. The inscription on the tree was cut by Dr. David Livingstone. From an 1878 publication.
Frances Awdry
<cite class="book" style="font-style:normal" id="Reference-Awdry-1878">Awdry, Frances (1878)      <i> <a rel="nofollow" class="external text" href="https://books.google.com/books?id=324BAAAAQAAJ">An Elder Sister, a Short Sketch of Anne Mackenzie and Her Brother the Missionary Bishop</a></i> (Public domain ed.), Bemrose and Sons  <small></small></cite>