In what passages from the first part of To Kill a Mockingbird does Atticus show courage?

In the first part of Harper Lee's To Kill a Mockingbird, chapters 1 through 11, one way in which Atticus displays courage is by bravely accepting the fact he needs to defend Tom Robinson.In Chapter 9, Atticus converses with his brother about the challenges of the Robinson case. One thing Atticus points out is that the case really has no evidence; all the case consists of is a "black man's word...

In the first part of Harper Lee's To Kill a Mockingbird, chapters 1 through 11, one way in which Atticus displays courage is by bravely accepting the fact he needs to defend Tom Robinson.

In Chapter 9, Atticus converses with his brother about the challenges of the Robinson case. One thing Atticus points out is that the case really has no evidence; all the case consists of is a "black man's word against the Ewells'," which shows how hopeless he thinks the case is and how brave he must be to take it on. Atticus further says that he had "hoped to get through life without a case of this kind," but when Judge Taylor had commanded him to be the defense lawyer, Atticus knew he could never face his children if he didn't take the case. More specifically, he knew he could never face his children if he didn't give his all to defending a man he knew was innocent while also knowing he would lose the case simply based on racial prejudice. Atticus knows he and his family will be ridiculed for his having taken the case, but continues with the case because he knows it is the right thing to do. Hence, Atticus defending Robinson in the face of ridicule shows Atticus's courage.

A second time he demonstrates courage is in Chapter 10 when he shoots the rabid dog named Tim Johnson. Tim had stopped just in front of the Radleys' gate, and Sheriff Heck Tate handed his rifle to Atticus, saying, "Mr. Finch, this is a one-shot job ... For God's sake, Mr. Finch, look where he is! Miss and you'll go straight into the Radley house! I can't shoot that well and you know it!" (Ch. 10). Atticus successfully took the shot. Later, Miss Maudie explains to Scout that Atticus had always been a very talented sharpshooter but had given up shooting when he realized his talent gave him a very "unfair advantage over most living things" (Ch. 10). In other words, Atticus gave up shooting because he developed an objection to killing innocent beings. Hence, Atticus showed a great deal of courage and  bravery by setting aside his principles in order to rescue Maycomb from Tim by killing him with one shot.