United Christian Missionary Society convention, Nanjing, Jiangsu, China, 19221922Also included in the International Mission Photography Archive.Convention of 1922. Drum Tower Church School Yard. United Christion Missionary Society missionaries are gathered for a group portrait in the Drum Tower Church school yard in Nanking [now Nanjing], China.This photograph is from the papers of Frank and Verna Garrett who served under the United Christian Missionary Society in the Nanjing area from 1896 to 1932.still image