In what ways are Miss Ophelia and Mr. Augustine St. Clare different?

Mr. St Clare is an atheist drunkard. He loves his daughter and is not a cruel master, but he also takes part in and tolerates the practice of slavery.

Miss Ophelia is against slavery on the one hand and really doesn't like them on the other. Over time, she became more supportive of abolishing the practice and became more tolerant of the slaves herself. Her realtionship with Topsy enabled her to see slaves in a different way.