Zheng-tong: Year 13, Month 12, Day 24
18 Jan 1449
Ding Xuan, retired vice censor-in-chief of the right in the Censorate, died. Xuan had his origins in Shang-yuan County, Ying-tian Prefecture....He then went as an investigative censor to Yun-nan and was subsequently promoted to assistant censor-in-chief of the left. He was then commissioned to supervise the transport and storage of grain in Xuan-fu and Da-tong. When the man of Lu-chuan in Yun-nan rebelled, the Imperial army, in doing battle with them, suffered defeat. Xuan was called to speedily proceed there and inspect the situation. He advised of over 10 ways to better employ the troops. Subsequently, he was appointed as grand coordinator in Yun-nan and concurrently supervisor of grain rations. When Lu-chuan was pacified, he was called back and promoted to vice censor-in-chief of the left....
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 29, page 3338