Spying by American Archaeologists in World War I

I am interested in detailing two aspects linked to theissue of several archaeologists working for the U.S. Office of Naval Intelligence (ONI)during the First World War. These spying activities were part of the controversysurrounding the censure of Franz Boas by the American Anthropological Association (AAA)for his published letter of October 1919, in which Boas claimed that four unnamedresearchers were involved in espionage activities using archaeological research as afront. As they were unnamed, who were these four archaeologists