Why is Papa unable to work on the railroad?
Because he broke his leg a week ago.
Why did Uncle Hammer sell his car?
He sold his car to help the Logans pay off their mortgage.
Who did Mr. Morrison and the children encounter on their way to Mr. Wiggins, and what was the nature of this encounter?
They encountered Kaleb Wallace, who blocked their path with his truck and threatened Morrison. Who, in response lifted his truck out the way.
Why are Stacey and the others unimpressed by T.J.'s friendship with R.W. and Melvin Simms?
They do not trust the Simms and see that T.J. is being used by them.
What is the significance of the approaching storm on the last day?
The approaching storm on the last day serves as an ominous signal, foreshadowing potential trouble.