J. R. Monterose (Frank Anthony Peter Vincent Monterose, Jr., Detroit, Michigan, January 19, 1927 – September 16, 1993), , was an American jazz tenor (and occasional soprano) saxophonist. J.R. or JR (derived from Jr.) Monterose grew up in Utica, New York, where his family moved a few months after his birth. He began formal clarinet studies at thirteen, but was largely self taught as a tenor saxophonist, which he took up at fifteen after hearing Glenn Miller band soloist Tex Beneke.