how does george shelby fulfill his promise to do everything in one man's power to eliminate slavery from the south?

When George Shelby returns home he tells Chloe about Tom's death. Chloe has prepared him a welcome home dinner, and afterwards George frees the slaves in Uncle Tom's name. When he gives the slaves their free papers, they beg him not to be sent away. George tells then they can work for him for wages and enjoy their freedom upon his death. He tells the slaves of Uncle Tom's martyrdom: "Rejoice in your freedom and be as honest and as faithful a Christian as Tom was." George reminds the newly free men to think of their freedom when they gaze upon Uncle Tom's cabin.