Robert Henderson is an Emeritus Professor at James Cook University, North Queensland. He joined the academic staff of James Cook University in 1969 following a post-doctoral post as a Fulbright Fellow and Frank Knox Memorial Fellow at Harvard University, Massachusetts, and served as President of the Geological Society of Australia from 1998 to 2000.
David Johnson holds an adjunct position as a Senior Principal Research Fellow in the School of Earth and Environmental Sciences, James Cook University, North Queensland.