Dr. John McWilliam McDonald was born on the 20th of August, 1889 in East Nissouri Twp (now part of an amalgamation called Zorra Township, Oxford County), Ontario. His parents, Hugh McDonald and the former Jean McWilliam were farmers near the small community of Lakeland. He had an older brother named James and 2 younger brothers; George and Robert. According to the 1911 census, Dr. McDonald was a teacher and living with his parents on the farm.
According to the 1922 Ontario Medical Register, Dr. McDonald graduated M.B. from The University of Toronto Faculty of Medicine in 1916. Dr. McDonald enlisted in World War I on the 18th of December, 1916. On his Officers Declaration, his occupation was listed as physician. After the war ended in 1918, Dr. McDonald settled in Highgate, Ontario and he opened his medical practice on Main Street. He is listed in the 1921 census in Highgate.
In 1922, Dr. McDonald travelled to London, England to do post graduate studies. He returned on December 11, 1923.
By 1940 Dr. McDonald and his wife Hazel resided at 4429 Clifton Road, Baltimore, Maryland. Dr. McDonald was a physician with the City of Baltimore Health Department. At the age of 52, Dr. McDonald enlisted in World War II with the United States Army.
By 1947, Dr. and Mrs. McDonald were living in Jacksonville, Florida.
Dr. McDonald died in 1962.
*Both of Dr. McDonald’s younger brothers, also became physicians. Dr. George Oliver McDonald practiced in Detroit, Michigan and Dr. Robert Hugh McDonald practiced in Cleveland, Ohio.