The first Commonwealth Statistician, George Handley Knibbs, obtained a legal opinion that "persons of the half blood" or less are not "aboriginal natives" for the purposes of the Constitution. At the first Australian census in 1911 only those "aboriginal natives" living near white settlements were enumerated, and the main population tables included only those of half or less aboriginal descent. Details of "half-caste" (but not "full-blood") aborigines were included in the tables on Race. Details of those "full-blood" aborigines enumerated were included in separate tables. This practice was followed in all subsequent censuses up to 1966.