^Black Belt Vol. 35, No. 4 Apr 1997 - Page 68 "Rolls Gracie. This son of Carlos Gracie is considered by many the family's best fighter of all time, but his career was cut short when he died in a hang-gliding accident in Rio de Janeiro.
^History of Jiu-Jitsu: The Tragedy of Rolls Gracie" 2011 "Rolls is called the father of modern jiu-jitsu and was the teacher of Rickson Gracie, Carlos Gracie Jr., Royler Gracie and Romero "Jacare" Cavalcanti. Just about every Gracie that practices the family art can remember where they were on June 6, 1982 when they heard that Rolls had died at the young age of 31.........Sadly, a hang-gliding accident claimed Rolls’ life in 1982, just as Rolls was in the early stages of teaching—only six men hold the high honor of being Rolls Gracie Black Belts. While he produced few black belts, Rolls touched many of his students and left a legacy that spans the entire martial art."
^Thomas A. Green, Joseph R. Svinth - Martial Arts of the World: An Encyclopedia of History and Innovation 2010- Page 34 "... 1959–1960), while Rolls Gracie (1951–1982) began cross-training in judo, sambo, and international freestyle wrestling. During the oil crisis of 1973–1974, the Brazilian economy sagged, and thousands of educated Brazilians decided to ..."