Since that time he has written four more Cliff Janeway mysteries: "The Bookman’s Wake" (1995), "The Bookman’s Promise", (2004), "The Sign of the Book" (2005), and "The Bookwoman’s Last Fling" (2006). Two other good mysteries are "The Holland Suggestions" (1975) and "Looking For Ginger North" (1980). Also in 1980 he published a sprawling novel about his adopted hometown called simply, "Denver". It covers the lives of some fictional families in Denver and the effects of the Ku Klux Klan on them during the 1920's. The last three selections are excellent but are long out of print. I was lucky and found used copies on Amazon.
John Dunning was not always a successful writer. In 1964, after something of a nomadic lifestyle, he settled in Denver working at a glass shop and later at some horse racetracks. By 1966 he was working in the library of "The Denver Post". That job led to a reporter’s job. During that time he also was in the process of collecting recordings of old radio shows which he turned into a 25 year long radio show in Denver and the publication of "The Encyclopedia of Old-Time Radio", a must for radio enthusiasts.