As China's first scientific institution, Geological Survey of China created many firsts in Chinese geological education, research, and exploration. Unfortunately, following the murder of the geologist Chao by bandits in Yunnan in 1929, in 1944, three more geologists were killed in Guizhou, bordering Yunnan. Among the three were Ms. Ma, the only female geologist in China at the time, and Mr. Hsu and Chen. They were killed on the same day, at the ages of 25, 36, and 28 respectively.