From the Moseley Royal Commission report:
https://aiatsis.gov.au/sites/default/files/docs/digitised_collections/remove/93309.pdf
“Dealing with half-castes—and this clause has chief
reference to these people—Dr. Bryan has spoken
strongly against the mating of half-castes with half-
castes, on the ground that it will perpetuate the black
and coloured elements. And still, ‘without advocating
the marriage of whites and half-castes, he does sup-
port the mating of a half-caste with a coloured per-
son higher in the white scale. To further this scheme,
he says, we should do all in our power to prevent a
half-caste marrying another half-caste, and to en-
courage him or her to look higher. This, of course,
can only be done by throwing these people together
and hoping for the best, and this is just what in
other words I have been advocating when suggest-
ing the Community Settlements where these coloured
people, or half-castes as I have called them (with-
out reference to ihe degree of colour in them), will
live their lives together under proper supervision.
If this scheme of breeding out the colour is really
effective, and if these people assist in the policy by
choosing the appropriate partners, well and good. If,
on the other hand, a half-caste chooses to marry a
half-caste, then I would not be a party to interfering
with such choice, hoping always that, as the coloured
race multiplied, effective administration might be the
means of raising them in habits if not in colour.”