Australian Aborigines' League
The Australian Aborigines' League was established in Melbourne, Australia, in 1933 by William Cooper and others, including Margaret Tucker, Eric Onus, Anna and Caleb Morgan, and Shadrach James (son of Thomas Shadrach James and brother-in-law of Cooper). Cooper was secretary of the League.
Source: Wikipedia — Australian Aborigines' League (CC BY-SA 4.0)