Today’s Mystery: Harry Branson summons Johnny on a mystery case that’s strictly for the dogs. Original Radio Broadcast Dates: April 9 and 10, 1956 Originated from Hollywood Stars: Bob Bailey as Johnny Dollar, Jeanette Nolan, Harry Bartell, Byron Kane, Jack Kruschen, Bill James, James McCallion, Ken Christy, Dick Ryan, Bert Holland, Jack Edwards, Hy Averback,…