According to a different source, these question refers to Jeffrey from An Account of the Slave Trade: Love Story of Jeffrey and Dorcas and Wesley Harris from Wesley Harris: An Account of Escaping Slavery.
Jeffrey and Harris share several similarities. Both of these men are slaves in America, and therefore, they are both expected to have no plans, desires or hope. However, they rebel against this ideas, as they both fight hard in order to preserve their humanity. Moreover, both of these men display an indomitable spirit that pushes them forward in life.
However, the two are also quite different. In the case of Jeffrey, the thing that helps him move forward is his love for Dorcas, another slave. When he loses this hope, Jeffrey loses all motivation to fight. On the other hand, Harris is motivated to try and fight because of himself, and he is able to hold onto this much longer. Moreover, while Harris is eventually able to gain his freedom, Jeffrey is separated from his love forever.