Children: Matthew and Alex. He also has at least one sibling.
At 19, Jarvis began acting by appearing in a production of "Seven Year Itch" at a small theatre in Virginia.
Was the father of Annie Camden on the TV show, "7th Heaven".
He was the son of Margaret Biddulph (Scratcherd) and William Henry Reginald Jarvis. His maternal grandmother, Katherine Constance Labatt, was the daughter of businessman/brewer John Labatt, whose own father, John Kinder Labatt, founded the Canadian Labatt Brewing Company. Graham's father was president of John Labatt Ltd.