When in the car he continues to try and cope with his mother and the kid's constant bickering. Although he does try to ignore much of what upsets him, he does on occasion lose his temper. Flannery O"Conner first hints at this when she mentions that Bailey would be angry if he knew the grandmother brought along her cat on the trip. When he does discover the cat (which led to the car flipping over), he takes the cat and throws it at a tree. Bailey also yells at the kids and his mother on several occasions, this to me is insight to how unhappy he is.
Bailey's wife (who's mentioned as "the mother") is not as interesting of a character as the grandmother or Bailey. The mother is a very passive character that enjoys keeping to herself. She does not care much for herself but more for others. This can be seen in the way she dresses and the way she goes along with what anyone says. When the grandmother asks to hold the baby (her and Bailey's youngest child), she hands the baby over with no hesitation, when Bailey says that the family will remain in the car she agrees with him.
The manner in which the kids are characterized reflects the mother's character as well as that of Bailey's and the grandmother's. John Wesley (the young boy) speaks his mind and says the things I believe Bailey is thinking. June Star, the young girl tends to go along with everything her brother says which is exactly what her mother does. The children also display qualities of the grandmother in the way they irritate and say what they shouldn't. June Star is mostly like the grandmother in that she is very vain and into herself.
The other characters included in the story are the misfits, as well as a local rest stop owner named Red Sammy and his wife. Between the three misfits one is spoken of the most; he is what helps to unravel the story. When the misfit is first introduced he is made to be seen as a possibly educated man, but as the story goes along it is evident that his good man image starts to deteriorate.