There has been a recent updating of the Centre for 21st Century Humanities’ website Colonial Frontier Massacres in Central and Eastern Australia 1788-1930
Take the time to read the Introduction to the website. Here the researchers explain that their criteria of a ‘massacre’ arises” from the indiscriminate killing of six or more undefended people”. Six people, they explain, from a hearth group of twenty leaves those remaining vulnerable to attack, with a diminished ability to hunt, reproduce or carry out ceremonial obligations.
It is still a work in progress, with information from Western Australia and after 1930 yet to be added.
The Resident Judge of Port Phillip 