How did the Cunninghams react to the verdict?
In chapter 23, Atticus is discussing the trial with Jem and mentions that one of the jurors was arguing for an outright acquittal. When Jem asks who the juror was that voted for an acquittal, Atticus tells him it was a member of the Old Sarum bunch. The Old Sarum bunch consists of members of the Cunningham family, who reside in the northern part of the county.
Jem is shocked to learn that one of the Cunninghams actually does not agree with the verdict and believes that Tom Robinson is innocent. Atticus proceeds to explain to Jem that he earned the Cunningham family's respect that night outside of the jailhouse. Atticus also mentions that if there were another member of the Cunningham family on the jury, there would have been a deadlocked decision, which would have resulted in a hung jury. Based on Atticus's information, the reader can infer that the Cunninghams were not pleased with the final verdict and believed that Tom Robinson should have been acquitted.