Jay Bowerman (1876-1957) was a Republican attorney, Oregon state representative for Gilliam County, and acting governor of Oregon, 1910-1911. Papers include correspondence regarding his activities in support of Republican candidates, his law practice and family; correspondence and research notes for a proposed history of eastern Oregon bench and bar; newspaper clippings and political ephemera regarding campaigns; and a scrapbook regarding the 1909 Oregon Legislature.

Lawrence T. Harris (1873-1960) was an Oregon Supreme Court justice, lawyer, legislator, and civic leader. Much of this unprocessed collection of Harris's papers consists of correspondence on political topics. Other materials include addresses on Masonry and constitutional history, personal notebooks, ephemera, a scrapbook, deeds, and titles.