Herbert Whitton Sumsion CBE (14 January 1899 – 11 August 1995) was an English musician who was organist of Gloucester Cathedral from 1928 to 1967. Through his leadership role with the Three Choirs Festival, Sumsion maintained close associations with major figures in England's 20th-century musical renaissance, including Edward Elgar, Herbert Howells, Gerald Finzi, and Ralph Vaughan Williams. Although Sumsion is known primarily as a cathedral musician, his professional career spanned more than 60 years and encompassed composing, conducting, performing, accompanying, and teaching. His compositions include works for choir and organ, as well as lesser-known chamber and orchestral works.
Sumsion was born in Gloucester, a cathedral city on the River Severn. In 1908, at the age of nine, Sumsion became a probationer in the Gloucester cathedral choir, which was then under the direction of Herbert Brewer. After two years Sumsion became a full chorister and sang with the choir until 1914. Gloucester was (and is) one of the three host cities, along with Worcester and Hereford, of the Three Choirs Festival, an annual festival of choral emphasis first held in the early 18th century. Sumsion would later write of his musically formative experiences at the cathedral: ‘Quite soon after my entry into the choir I was singing with the [Three Choirs] Festival Chorus and gradually absorbing the choral music of the great classical composers and the contemporary writers, of whom the giant was certainly Elgar.' When Sumsion’s treble voice broke at age 15, he became an ‘articled pupil’ to Brewer, a designation connoting a three-year apprenticeship in organ, choral direction, and music theory. As one of Brewer’s articled pupils Sumsion was following in the footsteps of his slightly older contemporaries, Herbert Howells and Ivor Gurney. Sumsion passed the Associateship exam of the Royal College of Organists in 1915, and in July 1916 joined Howells in passing the Fellowship exam; though he was only 17, Sumsion was awarded the Turpin prize for the second-highest marks in the practical component.