What major events occur with Dill Harris in the To Kill a Mockingbird?
At the story's outset, we learn that Dill Harris stays summers with his Aunt Rachel. This gives him the opportunity to play with the Finch children, and his inclusion leads to critical events in the story. For instance, it was Dill's idea to engage Jem and Scout in the dare involving the Radley place.
As the story progresses, Dill occasionally writes, and the Finches learn that he will be missing for a summer as he has "a new father" that he is staying with. The rumor surrounding Dill is that he is simply an orphan who gets shipped around from relative to relative, which is how he came to stay with his Aunt Rachel during the summers. Dill and Scout are "engaged" as childhood playmates, and feel certain that one day they will marry one another as adults.