Grand Slam Artists 11 Artists Mattson Larry 3 Records Williams Brent 2 Records Lowrey John 2 Records George Brothers 2 Records Logan Glen 2 Records Burke Johnny (And Eastwind) 2 Records Mack Wayne 2 Records Robertson Willis L 1 Record Cody Marji Lea 1 Record Ganyon Wally And The Northern Rebel 1 Record Evans Wayne 1 Record