The Morrow collection primarily documents the professional activities and architectural projects of Gertrude Comfort Morrow and Irving F. Morrow, including projects created by the firms of Morrow & Garren and Morrow & Morrow. The collection is organized into five series. Series I, Personal Papers, consists of resumes, awards, student works and clippings relating to both Irving and Gertrude Morrow. Series II, Professional Papers, contains records related to Irving’s involvement and membership in professional organizations such as the American Institute of Architects and the Commonwealth Club of California.

Series III, Project Records, is Arranged according to creator and chronology. It consists of photographs, correspondence, and drawings from project by Irving F. Morrow, Morrow & Garren, Gertrude Morrow, and Morrow & Morrow. Series IV consists of Irving Morrow’s Historical American Buildings Survey (HABS) records, including certificates, photographs and catalogs. The bulk of the collection was donated to the archives in 1992, however, the final series contains one drawing that was donated separately, in 1959.