They stopped at a better location with grazing for cattle and shops for wagon repairs.
They planned on going to Fort Laramie but decided to stop at Fort Bernard instead (10 miles east of Fort Laramie) because they were warned that Indians were fighting ahead, the grazing for cattle was poor at Fort Laramie, and they could get wagon repairs at Fort Bernard.
Calpurnia's cot shows how segregation is everywhere in Maycomb, including the Finch home.
We know that Aunt Alexandra has somewhere to sleep when she stays with them, suggesting that they have a spare bedroom. However, when Calpurnia stays with the Finches, she is not allowed to stay in the spare room.
