In Exodus, readers discover more about St John s role in sustaining his flock in Shanghai, arranging for their flight to Tubabao, and his successful efforts to lobby the U.S. government, which allowed thousands of refugees and orphans to emigrate to America. Drawing extensively on unpublished primary sources letters, memoirs, interviews, newspaper articles from key figures and eyewitnesses John B. Dunlop takes readers on an exciting journey, as they learn more about both St John and his emigre flock.