Beginning in 1939, in co-operation with the Rockefeller Foundation, the Ontario Department of Health, and the School of Hygiene at the University of Toronto, the East York Department of Health became a public health demonstration project. This allowed East York to double its staff and study more ways to improve the health of its residents. In 1947, its services were extended to neighbouring Leaside. Between the 1950s and 1997, East York public health staff carried out school immunizations, maternal and child care, mental health services, AIDS awareness, and anti-smoking campaigns, to name a few of its activities.
Dr. R.H. Fleming (1924-1933)
Dr. C.E. McLean (1930s; was in office in 1935)
Dr. William Mosley (ca. 1942-1960s)
Dr. James Bell (1970s-1983?)
Dr. Richard Schabas (1983-1987)
Dr. David McKeown (1988-1989)
Dr. Gerald Bonham (1990-1991)
Dr. Sheela Basrur (1991-1997)