Dong Zeng Chen
All three families lived in the Southern part of Hebei Province, which lies around and to the Southwest of Beijing and to the west of Shandong Province. The Li and Dong families lived close to the relatively large city of Hsing Tai (Xing Tai). Li lived to the Northwest in Hui ning and Tung lived to the Northeast in Jen hsien (Ren Xian). The Yang family lived in Lin ming kuan which was close to the relatively large cities of Han Tan and Yung Nien and South of Hsing Tai..
The detailed Chinese language maps I have on this site were copied from maps in Hamilton Library at the University of Hawaii at Manoa. One Saturday afternoon Dong Zeng Chen and I went to the library, where he was kind enough to walk me through the Chinese maps and help me annotate them.