Mask of Treachery -- The Dossier on Blunt, Buckingham Palace, MI5 and Soviet Subversion

The Cambridge University Communists who spied for the U.S.S.R. "...The first of the new Trinity Apostles was Andrew Benjamin Cohen, who became a member in 1930. Cohen was a historian and scholar from Malvern School.... Cohen later made his career in the Colonial Office. ... he became a leading proponent in Whitehall for African nationalism...." -page 182