Pedro Machado is a global and Indian Ocean historian with interests in commodity histories, labor and migratory movements, and the social, cultural, environmental, and commercial trajectories of objects. He is based at Indiana University, Bloomington. .Steve Mullins is a maritime historian specializing in the colonial tropical sedentary fishing industries and interconnections between the western Pacific, northern Australia, and Propinsi Maluku, Indonesia.Joseph Christensen is a maritime and environmental historian who works on North West Australia and its place in Indian Ocean history. He is based at the Asia Research Centre, Murdoch University, in Perth, Western Australia.