Notes
University of Bristol - Historical Photographs of China reference number: Ar01-032. The tombs of the “Three Martyrs”: Ma Zonghan 馬宗漢 (1884-1907) formerly known as Ma Chunchang, Chen Boping 编辑 (1885-1907) formerly known as Shi Li, and Xu Xilin 徐锡麟 (1873-1907) formerly known as Bo Hao. The rebuilt tombs are now in a garden of graves.