"the moment he opened his mouth, I cringed at the sound." and "my father was a strong man . . " They both represent that the author is afraid of their father and that he left a strong impression on the author idea of the way a father should be. Hope this helps :)
Put the comma after Coach Hall
Given the risks associated with escaping slavery, having 100,000 people escape is an incredible number and speaks to the bravery and desperation of those being held as slaves.
