N. A. Jayawickrama
Nicholas Abeydeera Jayawickrama (1920–2012) was a Sri Lankan scholar of Pāli Buddhist texts.
His 1947 PhD thesis for the University of London (linked below) is still the definitive work on the Sutta Nipāta—apart from the Paramatthajotikā and Niddesa themselves, of course—and he contributed translations for several other important Pāli texts for the Pāli Text Society throughout his career.
Professor Jayawickrama taught at the University of Ceylon and then Kelaniya University from his graduation until his retirement in 1985.
~Adapted from his obituary by Masahiro Kitsudo in the Journal of Pāli and Buddhist Studies