This collection contains architectural records, photographs, and professional records and related to the architectural practice of Henry A. Minton and John G. Minton. The majority of the projects are for Henry Minton's chapels, parish halls, schools, gymnasiums, auditoriums, rectories, convents, cemeteries and mausoleums for Roman Catholic parishes. Henry Minton also designed numerous branches for the Bank of Italy and a pre-flight school for the United States Navy. The remainder of his designs consisted of hotels, store buildings, and residences. The large majority of these projects were located in the California Bay Area, with a few elsewhere in California, Nevada, and Utah. Most of the drawings are graphite on tracing paper, the remainder are prints of various types. The project files consist mainly of specifications and proposals for Minton's projects, with a very few photographs. A small group of office records and professional papers complements these project records. Lastly, the collection also includes a smaller number of drawings and files for projects designed by Henry's son, John G. Minton, who continued his father's practice and often contributed additions and alterations to his father's earlier work.