John Rickard is Emeritus Professor of History at Monash University. He is the author of H. B. Higgins: The Rebel as Judge, The Age Non-fiction Book of the Year for 1984, Australia: A Cultural History, Packaging the Past?: Public Histories, A Family Romance: The Deakins at Home and An Imperial Affair: Portrait of an Australian Marriage. Emeritus Professor Peter Spearritt is an urban and environmental historian. His Sydney's Century: a history, won the NSW Premier's prize in 2000, and the third edition of his The Sydney Harbour Bridge: a life was published in 2011. His Where History Happened: the hidden past of Australia's towns and places appeared in 2018. He is the co-editor of the websites victorianplaces.

com.au and queenslandplaces.com.au and is currently working on urban water futures for Brisbane and Sydney.