Roy Galbraith Henderson CBE (4 July 1899 – 16 March 2000) was a British baritone singer, conductor and teacher. Born in Edinburgh and raised in Nottingham, Henderson began singing in public during the First World War, entertaining his army colleagues. After the war he enrolled at the Royal Academy of Music (RAM) in London, where he won numerous prizes. Professionally he came to public notice in 1925 deputising at short notice in the difficult and important baritone part in Frederick Delius's A Mass of Life at a London concert. He maintained a successful concert career for the next 27 years, taking part in the premieres of many works by British composers.