The Montmorency, Hayes and Talbot collection (1902 - 1980) consists of architectural drawings, prints, proposals, and ephemera related to 1174 specific projects across Utah, adjoining states (CO, ID, NM, NV, and WY), and further afield (CA, HI, IL, MT, and OR). The projects were designed not only by Montmorency, Hayes and Talbot Architects but also by predecessor individuals and firms notably Ashton & Evans; Ashton, Evans, and Brazier; Ashton, Brazier, Montmorency and Associates; and Brazier, Montmorency and Talbot.