Correct me if I'm wrong, but I think that that man is not General Smithers at all. In the V chapter, Domergue's brother tells him "And when it comes to that pile of niggers we building out back, won't take nothin' to make you General of it". That's why he apostrofies he is general, and Chris Mannix simply mixes him with real general. Later, when Warren explains how he humiliated his son, Smithers simply says "You don't know my son".

Correct me if I'm wrong, but I think that that man is not General Smithers at all. In the V chapter, Domergue's brother tells him "And when it comes to that pile of n------ we building out back, won't take nothin' to make you General of it". That's why he apostrofies he is general, and Chris Mannix simply mixes him with real general. Later, when Warren explains how he humiliated his son, Smithers simply says "You don't know my son".