H. OPERATIC WORK WERTENBAKER PAPERS. Vol. CLXXVII. ‘London Nights’. Typewritten drafts [imperf.] with brief autogr. notes, together with letters regarding the commission, suggested rewrites and eventual abandonment of the work; 11 Dec. 1989-29 Jan. 1990, n.d. ff. 148.
WERTENBAKER PAPERS. Vol. CLXXVIII. ‘A Year on Exmoor’. Preparatory autogr. notes, together with autogr. and typewritten drafts [some imperf.] with autogr. revisions; 17 Feb. 1977, n.d. ff. 238.