Scope and Contents From the Series: This series contains documents relating to the history of Orange County ranchos. The bulk of the materials consists of two types of materials: (1) negative photostats of diseños (maps) and title proofs submitted to the Commission for Ascertaining and Settling Private Land Claims in California [also known as the Public Land Commission, or the California Board of Land Commissioners], now in the United States National Archives, Record Group 49.3.4, Records of the General Land Office, Division...