West Indian radicals founded the African Blood Brotherhood in 1919

Evidence

Like the UNIA, the organizational cadre of the African Blood Brotherhood consisted largely of West Indians and Afro-Americans who had developed professionally as social agitators and journalist-propagandists. Its founding organizers in 1919 were Cyril Briggs (Nevis Island), Richard B. Moore (Barbados), and W. A. Domingo (Jamaica). Later, in the period between 1920 and 1922, Otto Huiswoud (Surinam) and a number of important Afro-American radicals joined the movement, including Otto Hall, Haywood Hall (Harry Haywood), Edward Doty, Grace Campbell, H. V. Phillips, Gordon Owens, Alonzo Isabel, and Lovett Fort-Whiteman. — Cedric J. Robinson, Black Marxism_ The Making of the Black…, 1015

Categorization

• XREF: Connects to the reader’s interest in the Black radical tradition’s formation by tracing Caribbean-origin organizers who later fed Marxist and communist movements (Harry Haywood).
• QUESTION: The prominence of West Indian journalist-propagandists in both UNIA and ABB suggests island colonial experience shaped radical cadres — worth tracing how Caribbean radicalism migrated to the US.
• corroborated: 2 independent passages support this claim — Cedric J. Robinson, Black Marxism_ The Making of the Black…, 1015