Ma Gui (1855-1940) was Yin Fu’s pupil, but also studied Bagua under Dong Haichuan. This is why he is also listed on Dong’s headstone as his student.
Ma Gui was skilled at Crab Palm and Dian Xue (Pressure-Point Fighting). He practiced the Unicorn style of Bagua.
Fu Zhen Song was a famous student of Ma Gui.