This collection contains the papers of Louis Napoleon Parker, an English playwright, translator, and historical pageant producer active in the theater from the 1890s until the early 1940s. The collection includes holograph manuscripts, typescripts, and printed editions of Parker's plays, prose and poetry; theater programs and newspaper reviews; a small selection of sheet music; correspondence; personal documents, including datebook-style diaries; photographs; several books belonging to Parker; and his portrait in chalk by Cyril Roberts.