 He maintained links with professional associations and amateur clubs through occasional exhibitions of his best work, and was senior vice-president (1938) and a life member of the Professional Photographers' Association.Cato retired from his Melbourne studio in 1946 to begin a career as an author.In addition to a large number of articles in photographic, philatelic and other magazines, as well as serving as chronicler for the Savage Club, he published an autobiography, "I Can Take It" (1947), and a pictorial documentary, "Melbourne" (1949).