J.R.Monterose was never a wholehearted follower of either Hawkins or Young. Nor a Rollins or Coltrane copyist, for that matter. These days his name is hardly heard at all and when he is discussed, it is often by mistake for his tenor counterpart and near.namesake, the West Coaster Jack Montrose, who is two years younger and was also born in Detroit. J.R.‘s birthplace. A proud Italien-American, Frank Anthony Vincent Monterose Jr. – professionally known as “J.R.” – was born on January 19, 1927.