This series contains subject files that were created by Miedema during the course of her historical research. The majority of the files relate to various aspects of Oxnard history, and Ventura County history to a lesser extent. All the folder titles are original and were created by Miedema, unless otherwise noted. Materials include clippings, notes, correspondence, legal and county reports, photographs, published works, pamphlets, and ephemera. The files have been alphabetized.