Cheng-hua: Year 4, Month 3, Day 2
25 Mar 1468
Further positions of an assistant administration commissioner and an assistant surveillance commissioner were established in Yun-nan to manage the silver mines. The posts were filled by Yang Xue, assistant administration commissioner of the left in Shan-xi, and Wang Chun, assistant surveillance commissioner in Jiang-xi, who were being re-assigned to posts after completing mourning for a deceased parent.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 41, page 1051