The initials "J. R." stand for Junius Richard. Junius Richard Jayewardene was a Sri Lankan politician and statesman who served as the second President of Sri Lanka from 1978 to 1989. He was also the Prime Minister of Sri Lanka from 1977 to 1978 and from 1960 to 1965.
Pathbreaker or Pitfall? Testing Your Knowledge on J.R. Jayewardene