Walter was their first-born child and spent his early childhood years on the family farm in Ontario.
The death of her husband led Jennie Campbell to return to Ontario to enable Walter to pursue higher education and eventually attend medical school in Toronto.
When Banting brought over the brownish grey liquid, 7.5 ml of McLeod's serum (which is what it was called in the orders) was injected into each buttock.
...As often in hospital care, the "hands on" work fell to someone lower in the hierarchy and it was the senior intern, Jeffrey, who actually gave the injection.
The seminal paper was published in March 1922 ...[2]The success of insulin lead to visits to Toronto by a steady stream of prominent diabetologists, including Elliott P. Joslin, Russell Morse Wilder, and Rollin Turner Woodyatt.
[2] Campbell's career thrived in the spotlight of insulin discovery, but his interest in endocrinology also led to a reputation in calcium physiology.