The papers consist of writings, research papers, printed material, photographs, and miscellaneous materials, and are arranged into seven series: A. Book Reviews by Lapsley of the books of others; B. Notes on Edith Wharton and Henry de Bracton; C. Lecture Notes: files of documents including notes, bibliographies and narrative sequences used in planning 'English Constitutional History to 1485'; D. Pamphlets, Journals and Books; E. Manuscript index cards, in sections, of books relevant to Lapsley's work; F. Photographs; G. Miscellaneous.
The writings reflect Lapsley's interest in medieval history, with a sizeable amount of work on Henry de Bracton, amongst others. Other papers reflect his work as Edith Wharton's literary executor, and a selection of her material survives in this collection, such as a transcript of her speech to the American Academy of Arts and Letters on accepting the Gold Medal for her services to Letters.
There are also a number of lecture notes and reviews published in the 'Cambridge Review' and other periodicals, and a variety of letters from friends, editors and fellow historians.
The printed materials are a mixture of historical journals and college documents including the WWII roll of honour. The photographs consist of three cabinet card photographs, one of them a duplicate, of two images of Edith Wharton posing with dogs.
Lapsley, Gaillard Thomas (1871-1949), American constitutional historian