Series Three features Letters from Assorted Friends to the McClure-Stuart Family. Note these friends are both local and international (one such is a French pen pal, etc.) acquaintances and many letters are from Lake Forest families like Durand, Hamill, Donnelley, and various other community members.
English-language translations of French one act plays, principally by Mary Aldis.
Series One features Letters of Nathan Fellows Dixon (I and II), Harriet Dixon, and James G.K. & Phebe Ann (Annie) McClure
Includes correspondence, primarily between Leverton and Barrett Clark, 1935-39, and some pertaining to the preparation and publication of the "America's Lost Plays" Series. Also contains playbills, photographs of scenes on stage, portraits of Leverton and other individuals, course notes, curricula material, typescripts, diplomas, and articles.