The first of her ancestors to come to America was a fur-trader named Simon Finch, who fled England to escape religious persecution and established a successful farm on the banks of the Alabama River. The farm, called Finch's Landing, supported the family for many years. The first Finches to make a living away from the farm were Scout's father, Atticus Finch, who became a lawyer in the nearby town of Maycomb, and his brother, Jack Finch, who went to medical school in Boston. Their sister, Alexandra Finch, stayed to run the Landing.
A successful lawyer, Atticus makes a solid living in Maycomb, a tired, poor, old town in the grips of the Great Depression. He lives with Jem and Scout on Maycomb's main residential street. Their cook, an old black woman named Calpurnia, helps to raise the children and keep the house. Atticus's wife died when Scout was two, so she does not remember her mother well. But Jem, four years older than Scout, has memories of their mother that sometimes make him unhappy
In the summer of 1933, when Jem is nearly ten and Scout almost six, a peculiar boy named Charles Baker Harris moves in next door. The boy, who calls himself Dill, stays for the summer with his aunt, Miss Rachel Haverford, who owns the house next to the Finches'. Dill doesn't like to discuss his father's absence from his life, but he is otherwise a talkative and extremely intelligent boy who quickly becomes the Finch children's chief playmate. All summer, the three act out various stories that they have read. When they grow bored of this activity, Dill suggests that they attempt to lure Boo Radley, a mysterious neighbor, out of his house.
Arthur Radley lives in the run-down Radley Place, and no one has seen him outside it in years. Scout recounts how, as a boy, Boo got in trouble with the law and his father imprisoned him in the house as punishment. He was not heard from until fifteen years later, when he stabbed his father with a pair of scissors. Although people suggested that Boo was crazy, old Mr. Radley refused to have his son committed to an asylum. When the old man died, Boo's brother, Nathan, came to live in the house with Boo. Nevertheless, Boo continued to stay inside.
Dill is fascinated by Boo and tries to convince the Finch children to help him lure this phantom of Maycomb outside. Eventually, he dares Jem to run over and touch the house. Jem does so, sprinting back hastily; there is no sign of movement at the Radley Place, although Scout thinks that she sees a shutter move slightly, as if someone were peeking out.