Donald McGavran served as a director of Christian education and denominational executive in India for the United Christian Missionary Society from 1923 to 1936. During those years he completed a Ph.D. in Education from Columbia University, and met J. Waskom Pickett who helped redirect him into the research on church growth. His interest in evangelism eventually led to his demotion to a field evangelist in 1936; a move that would change his life.
McIntosh, G. L. (2015). Donald McGavran: A Missionary to India. Great Commission Research Journal, 7(1), 43-61. Retrieved from https://digitalarchives.apu.edu/gcrj/vol7/iss1/5