- Aug 4 John Dillon, Irish nationalist and British Lower house leader, dies at 75
- Aug 5 Thomas Groube, Australian cricket batsman (1 Test; Victoria CA), dies at 69
- Aug 13 James Oliver Curwood, American journalist and writer (Valley of Silent Men), dies at 49
- Aug 23 Nicola Sacco & Bartolomeo Vanzetti, executed in Massachusetts
- Aug 23 Therese Zamara, Austrian harpist and music teacher, dies at 71
- Aug 28 Li Ta-chao [Dazhao], Chinese intellectual, revolutionary, and co-founder with Mao Zedong of Chinese Communist Party, executed as a political prisoner at 37