I may also have failed to recognise them. I do know we haven't gotten non-airplane scenes with the NCOs much/at all so far. The debate about the cow was probably the longest crew interaction I can remember.

Dresden was in the book, in quite a bit of detail, so there's that at least. The show's up to October 1943, so far, and Dresden was February '45. We saw a brief clip of D-Day in the opening credits, so they're at least getting to summer '44?