The specific generational scope of this collection is limited to the figures of Dorsey Syng Baker (known as D.S.), his subsequent wives, and his three sons. A small portion contains correspondence and records for Dorsey's parents-in-law, the Tibbetts. Throughout this collection are valuable records, correspondence, legal documents, and diaries relating many aspects of pioneer and early statehood life in the Pacific Northwest, especially for Portland, Oregon, and Walla Walla, Washington. The records include those for transportation, banking and commerce, agriculture, mining, and land acquisition and management, as represented by the efforts of Dorsey and his sons. Their activities and influence extended to the mid-twentieth century. In addition, there is a small collection of files kept by Baker family members on individual clients or associates. Overall, though the personal letters and diaries provide a few intimate insights, a substantial portion of the Baker Family Collection is a record of family businesses and political and legal interests. These diaries are a selection from the overall collection.