Various materials concerning Parsons’s architectural career, especially correspondence, date books, design work (mainly blueprints and plans), drawings, materials from a scrapbook, and a couple of volumes with project plans from when Parsons was part of the Bennett, Parsons and Frost firm. Much of the design work relates to city planning, although some of it also relates to his homes in Hartford, Connecticut: Hillcroft and the Barnacle (an adjacent barn used as a summer home). Other items in the series include articles, a list of his reference works, postcards, calling cards, certificates, clippings, financial statements for projects, a form with Parsons’s qualifications, and an announcement of the partnership between Parsons and Edward Bennett. A few of the materials come from his years as an architecture student, while the series also contains some posthumous materials (such as articles, clippings, and documents regarding the Parsons Medal for Yale), presumably included by his descendants as items relevant to Parsons’s accomplishments.