1891, August 24, Born in Swatow, China
1911–1913, Attended Colby College
1913–1917, Studyed in the Medical School of the University of Pennsylvania, got M.D.
1917–1918, Served at Peter Bent Brigham Hospital (Boston)
1917-1919, Joined the Medical Corps of the U.S. Army and served as a first lieutenant in U.S. General Hospital Number 14 at Fort Oglethorpe, Georgia
1918, June 21, Married Helen Thomas in Farmington, Maine
1919, March 31, Son, John Thomas Foster, was born in Fort Oglethorpe, Georgia
1919–1920, Attended language school at the University of Nanking (Nanking, China)
1920–1927, Instructor, then Associate Professor of Medicine, Hsiang-ya Medical College (Changsha, China)
1930, Assistant Professor of Medicine, Harvard Medical School, then Attending Physician and Cardiologist at Waterbury Hospital
1950–1952, President, Waterbury Heart Association
1972, Retired
1980, Changsha Memories, An oral interview mainly about his experience as a missionary
1985, March 2, Passed away