LC data base, 7-9-87 (hdg.: Dearmer, Percy, 1867-1936)
Oxford Book of Carols, 1964 t.p. (Percy Dearmer)
Wikipedia 10 Jan. 2014 (Percival (Percy) Dearmer (27 February 1867-29 May 1936) was an English priest and liturgist best known as the author of The Parson's Handbook, a liturgical manual for Anglican clergy. Dearmer also had a strong influence on the music of the church and, with Ralph Vaughan Williams and Martin Shaw, is credited with the revival and spread of traditional and medieval English musical forms.)