(b. Valletta, 1911; d. London, 2007).
Eng. poet and librettist. Married composer Ralph Vaughan Williams 1953. For him wrote many texts incl. that for The Bridal Day (1938), verses for The Pilgrim's Progress (1951), and Four Last Songs (1954–8). Wrote RVW: a Biography (1964). Also wrote texts for other composers, 3 novels and 5 vols. of poetry.