Alex's father Dong Zengchen might.
Alex'suncle and Dong Zengchen older brother Tung Kaiying likely will not.
Tung Kaiying's son, Tung Chen Wei I know nothing about
There are videos of Tung Hu Ling; Tung Kaiying and Dong Zengchen's father but they are not instructional
Everything else I have seen from other sorces claiming to be the Tung family style were not. There are a couple out there claiming to do 1 of the two fast forms but they are not and one of those is absolutly convinced he is. However the person that taught it to him did not really know it.