Career
Born in Barbados, Braithwaite went to sea with the British merchant navy as a teenager and travelled the world as a sailor. He then settled in Chicago and founded a family, before rejoining the Merchant Navy during World War I. After World War I he lived in New York for a while, before moving to settle in London, working for the Shipping Federation. Taking the pseudonym "Chris Jones" to avoid victimisation by his employer, Braithwaite had joined the CPGB by 1931.
He helped distribute the Negro Worker, and with Arnold Ward helped launch the Negro Welfare Association, publicising the case of the Scottsboro Boys.
In 1933 he followed George Padmore in resigning from the CPGB in protest at the implicit shift away from anti-imperialism involved with the emerging "Popular Front" strategy. In 1935, opposing the new British Shipping Subsidy Acting, Braithwaite founded the Colonial Seamen"s Association - which included Asian seamen alongside other black colonial seamen.
He became organising secretary of the International African Service Bureau (IASB), established in May 1937, whose members included Padmore, C. L. R. James, Jomo Kenyatta, Amy Ashwood Garvey and I.T.A. Wallace-Johnson. Braithwaite wrote a monthly column, "Seamen"s Notes", for the IASB journal, International African Opinion.
Braithwaite, Padmore and James continued to oppose the CPGB, turning up together to heckle CPGB meetings
Braithwaite and Padmore worked with the Independent Labour Party (ILP) and with ILP intellectuals like Reginald Reynolds and Ethel Mannin.