With Topham's aid Drew regained his feet and got the staggering Texan, still half unconscious, onto a chair.
Drew put the Texan into a chair after he had punched him.
mnli hypothesis: Drew put the Texan into a chair after he had punched him. premise: With Topham's aid Drew regained his feet and got the staggering Texan, still half unconscious, onto a chair.