William Henry Squire and her husband, the baritone Kennerley Rumford. During this same period Squire was also associated with the music festivals held at Leeds and Norwich, and Hereford, Worcester and Gloucester (the Three Choirs Festival). He played in trios with William Murdoch (piano) and Albert Sammons (violin) – the "London Chamber Music Players", and Frederick Sewell (piano) and Johannes Wolff (violin). His performance schedule remained busy until the late 1920s by which time the limited number of prestigious concert dates became shared between a growing number of cellists. In October 1941 he made his last appearance in a public concert at the
Herbert Howells following year by the Magnificat and Nunc Dimittis, and completed in 1956 by the "Office of Holy Communion". "Collegium Regale", the "Gloucester Service" (for Gloucester Cathedral, 1946) and the "St Paul's Service" (for St Paul's Cathedral, 1951) remain the best known and most admired of the many settings of the Anglican liturgy written by Howells for particular choirs and buildings over the next thirty years. In 1949, the organist Herbert Sumsion asked Howells if he had anything that could be performed at the 1950 Three Choirs Festival to be held at Gloucester. Howells decided to bring out the incomplete choral