Englishmen in New York: The SIS American Station, 1915-21

This article examines the organization, personnel and selected operations of the British Secret Intelligence Service (MI6) in New York during and immediately after the First World War. Under the leadership of Sir William Wiseman, SIS agents successfully combated German intrigues as well as Irish and Indian nationalists. The greatest challenges, however, were managing the shifting relationship with American authorities and the encroachments of rival British agencies such as MI5. The roles of Guy Gaunt, Robert Nathan and Norman Thwaites are given particular attention.