Babcock was born on July 23, 1900, into a family of thirteen children on a farm in
Frontenac County, Ontario. According to Babcock, the barn where he was born (which no longer exists) was located off
Highway 38 in
South Frontenac Township. His father died in 1906 after a tree-cutting accident, when Babcock was only six years old. As described in his account given to
Maclean's, while his father was cutting down one tree, another dead tree fell on his shoulder. Although he was brought into the house on bobsleigh, he only survived another two hours. Babcock said that this was an "awful blow" to the family. School was never a concern for Babcock, and he did not earn his high school diploma until the age of 95. On growing up in the area, Babcock claims that he "didn't do very much," although he admits that "[i]t was a fun place to grow up." Babcock partook in fishing, hunting, and swimming—especially around the local
Sydenham Lake—in order to pass the time with the other kids his age. He would return to the area in 1919, after his wartime experiences, but soon after left for the United States. Nevertheless, Babcock's relatives continue to work at the Crater Dairy farm (named after the
Holleford crater, a remnant of a
meteor strike) and the community grew to greatly respect John. ==World War I==