The story takes place from 1842 to 1852 and hints to the impending end of slavery as newer generations blur the lines between master -LSB-...] (wordsywomanforauthors.com)
And that «minority of die - hard idealists» whom Marr praises for bringing about the end of slavery? (firstthings.com)
As far as «advocacy for slavery» goes, you might want to check out who the first abolitionist were, especially in Britain and what they gave up to see the ending of slavery. (religion.blogs.cnn.com)