an official of the Ming Dynasty, served as a magistrate in Yingde and Xingye County, originally from Raoping.

an official and hydrologist of the Northern Song Dynasty, son of Jia Dan, esteemed by Wang Anshi, who continued his father's work on hydrology and authored 'You Cheng Jing Wu Ji'.

a Song Dynasty scholar from Kunshan, known for his expertise in water conservancy and his works 'Wu Zhong Water Conservancy Theory' and 'Youthful Enlightenment Collection'.