Final answer:
Mr. Nathan Radley knows about the intruders in his garden, but it is unclear if he knows their true identities. Miss Stephanie uses a derogatory term, 'negro,' to refer to an African American man over whose head Mr. Nathan has fired.
Step-by-step explanation:
Mr. Nathan Radley is aware of the intruders in his garden in the book To Kill a Mockingbird. He shoots his gun to scare them away, but it is unclear whether he knows their true identities. Miss Stephanie refers to a 'negro' over whose head Mr. Nathan has fired because she is using language that was commonly used during the time the book is set, which is the 1930s. The term 'negro' was commonly used to refer to African Americans during that time period.