John M. Foster began his missionary work in South China in the late 1880s, joining the American Baptist South China Mission. He was primarily based in the Swatow (Shantou) region, a key coastal area that served as an important point of contact between China and foreign missionary organizations.
Mission records identify him as “Rev. J. M. Foster, D.D.,” indicating his senior position within the mission and his long-term involvement in its activities. His work included preaching, teaching, and organizing religious institutions, but also extended into education and leadership development.
Foster’s presence in Swatow reflects a broader pattern of American missionary expansion into port cities, where access to international networks made it possible to establish schools, churches, and training programs. Rather than focusing only on conversion, his work contributed to building lasting institutional structures that connected local communities with global religious and educational systems.
Excerpt from a missionary letter written shortly after arrival in Swatow (1888), describing early impressions and the beginning of Foster’s work in China.