This chapter describes the ways Scots and Irish migrant mentalités were constructed on board ship during the outward voyage to Australia. It concentrates on the interplay between the performance of Scots and Irish passenger identities within the semiotic shipboard spaces and the temporal and spatial shifts identified by Alexander McNeill and William Lyall. Hassam argues that voyage diaries were much more than simply passive records of events. They were cultural performances which sustained the emigrants' sense of identity during the time-space shifts inherent in the voyage. McMahon Glynn incorporated casual racism into his narrative of the voyage, where it gave colour to his account of socially performed place. McNeill was a prime example of Prentis' ‘taken-for granted Scottishness’. The diaries and journals that do survive suggest that social status and ethnicity elided in complex ways to form ambiguous and nuanced spaces that were performed as place on board.