Apologies to all, especially to Catherine Birkinhead, for neglecting to draw your attention to...
Wu lineage is one of the so-called famous family schools of Tai Chi Chuan. Here for the first time are photos of Wu Jianquan, his son Wu Gongyi, Cheng Wingkwong and of Cheng Tinhong performing the long form. They all seem to be doing Square Form, a simplified version of the long form.
This is a 30 page pdf document available for download. Cost: £15
Commentary by Dan Docherty.