ATTICUS. Atticus shows courage when he decides to defend Tom Robinson, realizing the decision may cost him friends and bring trouble to himself and his family. He stands up to the lynch mob by himself, knowing that he may be injured or even killed. He picks up a gun for the first time in 30 years, and kills the rabid dog that presents danger to his neighbors.
SCOUT. Scout unknowingly displays courage when she rushes to her father's rescue at the jail, confronting the lynch mob and shaming Mr. Cunningham into ordering the rest of the men to leave. She never backs down from a fight, besting all of the boys she battles (aside from brother Jem), including her cousin Francis.
MRS. DUBOSE. Atticus refers to Mrs. Dubose as "the bravest person I ever knew." Learning that she would die soon, Mrs. Dubose decided to rid herself of the longtime morphine addiction she had endured. She went cold turkey, suffering most of the time, her pain only slightly alleviated by the distraction she received from Jem's reading to her. Atticus assigned Jem to be near the old lady so he could
"... see what real courage is, instead of getting the idea that courage is a man with a gun in his hand. It's when you know you're licked before you begin but you begin anyway and see it through."