As far as i am aware Chen Fake had 3 children, 2 sons and 1 daughter.
The eldest child was his son Chen Zhaopu who is Chen Xiaowang and Chen Xiaoxing father.
Then he had a daughter Chen Yuxia.
And his youngest child was his son Chen Zhaokui who is Chen Yu's father.
Did his daughter Chen Yuxia get married if so did she have any children? Did they study the family art and do they teach today? If so where? I know that Zhang lianen and possibly Liu Chengde (both Hong Junsheng's tudi) both studied with her at some point.