I was curious, in Stonewares of Yixing, K.S. Lo has the name "Cheng Jinshou" listed as the son of Cheng Shouzhen and Cheng Pan'gen as his grandson. Is it safe to say that this is an error? And if so, who is Cheng Jinshou? From what was just referenced to me, Cheng Pan'gen is Cheng Shouzhen's son? And then who is Cheng Jinshou listed in the book? Cheng Shoujin?

I ask because I have a late qing or early republic tea set inscribed by Qitao and the stamp on the bottom of the teapot is Bingxin daoren (Cheng Shouzen) while we're still trying to figure out what the stamp is inside the lid of the teapot, but it most resembles through referencing Cheng Pan'gen, however, it is not quite clear yet if it is indeed Cheng Pan'gen's due to how little the stamp inside the lid is visible.
Any cross referencing would be appreciated. Thank you!!!
Aaron