From left to right: <a href="https://en.wikipedia.org/wiki/Li_Shigong" class="extiw" title="w:Li Shigong">Li Shigong</a>, <a href="https://en.wikipedia.org/wiki/Chen_Laoyi" class="extiw" title="w:Chen Laoyi">Chen Laoyi</a>, and <a href="https://en.wikipedia.org/wiki/Robert_Morrison_(missionary)" class="extiw" title="w:Robert Morrison (missionary)">Robert Morrison</a>. Engraved from a painting by <a href="https://en.wikipedia.org/wiki/George_Chinnery" class="extiw" title="w:George Chinnery">George Chinnery</a> done about 1828. The original painting was destroyed in a fire in 1874. Only printed copies and engravings survive.
<bdi><a href="https://en.wikipedia.org/wiki/en:George_Chinnery" class="extiw" title="w:en:George Chinnery"><span title="British artist (1774-1852)">George Chinnery</span></a>
</bdi>
Lindsay and May Ride et al. (1996). <i>An East India Company Cemetery: Protestant Burials in Macao</i>. Hong Kong University Press. p. 45. <a href="//commons.wikimedia.org/wiki/Special:BookSources/9622093841" title="Special:BookSources/9622093841">ISBN 9622093841</a>.