Bob Ewell was a character in 'To Kill a Mockingbird'. He was from a poor family in Maycomb. He was a drunk and an abusive father. He falsely accused Tom Robinson of a crime out of spite and his own prejudice. He was generally disliked in the community for his lazy and mean - spirited ways.
Well, it's a complex issue. Mayella's actions are influenced by her circumstances and the social context. Some could argue that her behavior is unforgivable given the harm it causes, but others might consider the broader factors at play and have more sympathy.
Well, first off, his false accusation of Tom Robinson was a huge deal. It was a blatant lie that took advantage of the racial prejudice in Maycomb. His drunken brawls and general bad behavior in town were also key events that painted him as a no - good character. Then there was his decision to go after the Finch kids. He thought he could get away with it, but it was a big mistake. His life was full of these negative events that ultimately led to his downfall, both in terms of his reputation in the town and his own physical end.
If we consider the general 'Elizabeth story', Elizabeth is likely the central figure. Her significance could be that she drives the plot forward. For example, if it's a story of her journey, her decisions and actions would be what the story is built around.
Sarah was significant as she was Abraham's wife. She was part of God's plan to create a great nation. Even though she was barren for a long time, her eventual pregnancy and the birth of Isaac were important steps in fulfilling God's covenant with Abraham.
I'm not sure exactly who Sarah is without more information from the story. But she is likely a person who has a weight problem and is the focus of the '600 pound life' story.