HI Barbara,
William Edwin Joy shows as my paternal grandfather on my father's birth certificate and his mother's death certificate)
Married to Amy (later Barnes but originally McKenzie) Born in 1880 , if her age of 70 at death in 1950 is accurate. They had my father Edwin Alfred Bruce JOY on 19th Jan , 1921 (although registered his birth much later in 1936 at Ryde IOW at that time Amy's address was Sevenoaks)
Amy's Death Certificate shows a return to Tonbridge Wells
Still digging!
Chris