On chapter 15 Describe Arthur Jarvis' family. What work did Jarvis do for the blacks?

The contrast in the attitudes and style of John and Stephen Kumalo become significant in this chapter, in which the two brothers find that both of their sons are suspects in the murder of Arthur Jarvis. This evokes the underlying conflict between the two brothers apparent from their first meeting, in which John represented the secular and the urban, while Stephen represented the religious and the rural. The conflict between the two brothers will involve other issues as the fate of the two cousins diverge, while encompassing the major difference in the two men's approaches to the world.This includes the approach to blacks. The blacks on the family farm are seen as workers but they are treated fairly.