Hi Jeanne. There is this:
https://www.findagrave.com/memorial/199692405/tamara-belling_hayes
But it doesn't seem to help answer your question.
I live in Drouin so I popped down to the cemetery to see if there was anything that might help.
The photo on FG is up-to-date and the marker has not been changed. There was no information that wasn't already documented online.
I did note that several graves in close proximity were marked with the indigenous flag. Taken in conjunction with the Aboriginal Funeral Services organising the funeral, it seems to support identification of this lady as a First Nations person.
I also observed that her daughter has been laid to rest in the same plot.