Evidence of the area that a place name refers to
My friend is doing a project and is looking for textual evidence of the area (or boundary of the area) that a place name refers to. For example, what area does the place name "Wan Chai" include or describe?
For now, he is working on three place names -- Wan Chai, Pok Fu Lam and Ngau Tau Kok. The evidence can be historical or current, but cannot be graphic or based on maps. If you come across such pieces of evidence, please post them here. Thank you!
In addition, you can share your opinion about the boundaries of these or any other place names.