In 1938, they wrote a book on Mexico, published by Oxford University Press. For Eugene Dennis, they helped prepare a draft program for a Popular Front organization in Brazil that the party intended to create to concern itself with Latin America. Dennis told them that the draft "would have to be submitted to the Comintern in Moscow."
In 1938, they authored a book about Mexico through Oxford University Press and were involved in assisting Eugene Dennis with drafting a program for a Brazilian organization that would focus on issues in Latin America. This draft was intended to be submitted to the Comintern in Moscow.