The records of San Francisco Focus Gallery measure 11.8 linear feet and date from 1963-1987. The bulk of the collection consists of exhibition files. There are also artists files, sales information, correspondence, and scattered records of the gallery's companion bookshop.
The Frank K. M. Rehn Galleries records measure 21.8 linear feet and are dated 1858-1969 (bulk 1919-1968). The records consist mainly of business correspondence with collectors, artists, museums and arts organizations, colleagues, and others. A small amount of Frank K. M. Rehns personal correspondence and a few stray personal papers of individual artists are interfiled. Also included are financial records, scrapbooks, printed matter, miscellaneous records, and photographs documenting most of the history of a highly regarded New York City art gallery devoted to American painting.