Please take a look at this excerpt from The Catcher in the Rye:
I think I probably woke he and his wife up, because it took them a helluva long time to answer the phone.
This phrase confused me. Why does the author not write "him and his wife", rather than "he and his wife"? Also, I'm slightly confused about his use of "a helluva" - could someone give me other examples of its use? I think I understand what it means, but I'm not sure how to use it in practice.