Rennie, Sylvester Wilding was born on July 25, 1903 in Montreal, Quebec, Canada. Son of John Ingraham and Frances Agnes (Neville) Rennie.
Brought to the United States, 1913, naturalized, 1919. Doctor of Medicine, University Pennsylvania, 1930.
Intern, Abington (Pennsylvania) Memorial Hospital, 1930-1931, clinical training in surgery, 1931-1932. Clinical training in obstetrics and gynecology Womans Hospital, New York City, 1932-1934. Chief obstetrics and gynecology department Delaware Hospital, Wilmington.
Chief obstetrics and gynecology Delaware Eastern State Hospital, Governor Bacon Health Center. Turstee, Brandywine College, 1968-1971.
Served to major, Military Cross, Australia, 1942-1944. American College of Surgeons fellow, International College Surgeons, American College Obstetrics and Gynecology. Member of the American Medical Association, American Fertility Society, International Fertility Association, Delaware (president 1961-1962), New Castle County (president 1953-1954) medical societies, University of Pennsylvania Alumni Association (past president Delaware).
Coub: University (president) 62-64 (Wilmington).
Married Margaret Carolyn Valentine, September 29, 1934.