《明史·志·卷六十三》
隆庆五年，给事中李贵和又请求开掘疏浚，诏令派遣给事中胡杠会同山东巡抚、巡按官吏商议。
隆庆五年，给事中李贵和复请开浚，诏遣给事中胡槚会山东抚、按官议。
In the fifth Longqing year, the Giving Counselor Li Guihe memorialized again to request that dredging be carried out. An order was issued for Giving Counselor Hu Gang to discuss the matter jointly with the Shandong Circuit Supervision and the Inspection Circuit Assistant.