This chapter describes the subsequent lives and careers of the group of ethical vegetarians who met at Oxford. More analytically, it seeks to consider how influential their crusade for animal rights has been, focusing on the impact of Singer’s Animal Liberation. In short, it is difficult to quantify the contribution made by the Oxford Group, and Singer’s work in particular, to the revitalization of the animal protection movement since the 1970s. Clearly, Animal Liberation has had a considerable influence, for some acting as a catalyst for the way they see the world, and for others reinforcing, and giving structure to, their already existing disquiet at the way animals are treated. It is extremely likely, however, that the considerable strides made by the animal protection movement (documented in this chapter) would have happened anyway even if the Oxford Group, and Singer’s work on animal ethics, had not existed.