Whose face is on the Australian 10 dollar bill?

Answer 1

OBV: Portrait of AB 'Banjo' Paterson

Based on a photograph of him taken at the time of his return to the Boer War in 1900. The photograph is held by the Paterson Estate.

REV: Portrait of Dame Mary Gilmore

Based on a photograph of Gilmore taken in her early twenties. This photograph has appeared in the Australian encyclopaedia and is held by the National Library of Australia.

Answer 2

the Indigenous Australian featured on the fifty dollar note is named David Unaipon ... :)