Willis Jacob joined the Ontario Provincial Police in January 1955 working at General Headquarters in Toronto and then at Alliston and Wasaga Beach. In 1957, while at Barrie Detachment, Constable Jacob was part of the newly formed Traffic Unit.

On the evening of October 3, 1958 Constable Jacob’s cruiser was traveling on the highway between Barrie and Orillia when a car traveling in the other direction lost control and crossed into the path of Constable Jacob. The impact killed Constable Jacob instantly.

His wife, who was expecting their first child, survived Willis Jacob. Willis was thirty-four years of age.