1. Robert Marsden Hope, Report of the National Estate (Canberra: Australian Government Publishing Service, 1974).
2. Donald Watson, “Dating your own home” in National Trust of Queensland Journal, July–August 1976, 27–28; Donald Watson, “Dating your house,” National Trust of Queensland Journal, February 1978, 19–26.
3. Robert Martin and Lindy Crofts, Ipswich: A Townscape Study for the National Estate (Brisbane: National Trust of Queensland, 1977).
4. Donald Watson, “Clearing the scrubs of south-east Queensland” in Kevin Frawley and Noel Semple (eds), Australia’s Ever-changing Forests (Canberra: Department of Geography and Oceanography, Australian Defence Force Academy, 1988), 365–392.
5. The methodology is the same as developed by Bill Gammage in The Biggest Estate on Earth: How Aborigines Made Australia (Crows Nest: Allen and Unwin, 2012).
6. Later research by Watson identified that Roehricht…