This three page undergraduate paper examines the group dynamics exhibited during the Shackleton expedition to the South Pole in 1914. The author notes that the transitions experienced by ship’s carpenter Chippy McNeish during and after Ernest Shackleton’s expedition to the South Pole provide revealing examples of how group dynamics are affected when a marginal member of the group makes a significant and unexpected contribution to the success of the group as a whole. Using the Moreland & Levine model of group socialization demonstrates how this development changed perceptions of loyalty and disloyalty within the Shackleton expedition, and changed the group dynamics involved.