yes, this seems to me to make sense, contextually. If you did Piranesi on architecture, it wouldn't make sense to exclude his drawings. or Ronald Searle's diary of his time in the PoW camps in Japan, or Edward Ardizzone's war diaries, or the sketches by "DD" watkins in his books.. or heaps of others.

arthur rackham's illustrations for childrens books, just like e.h. shepards for winnie-the-pooh, or Quentin Blake for his contributions to childrens books: its senseless to re-publish them without these illustrations (when the IP becomes available, of course)