The Anna Lomas papers date from 1917 to 1991 and measure 5 linear feet. The papers document the political careers of Anna Lomas and her father William Cochrane. The papers are arranged in three subgroups: Personal, Political, and William Cochrane Papers. These papers would be most useful for a researcher interested in the role and perspective of a woman in the Republican Party at mid-century, the popular or material culture of US politics at this time, or local and state political organizations and activities.

The Personal Papers subgroup includes biographical information about Anna Lomas and material from her service on the White House Conference on Aging and the Iowa State Historical Society. There is material from Herbert Hoover's 80th birthday commemoration and the Hoover Presidential Library Dedication. The subgroup also contains a speech Lomas made when honored by her sorority as well as photographs and correspondence.

The Political Papers are further divided into four series: Iowa Republican Party, National Republican Party, Political Campaigns, and Artifacts. Each series is organized chronologically. The Iowa Republican Party series contains material on Republican party conventions from 1944 to 1972, gubernatorial inaugurations from 1955 to 1969, party workshops in the 1950s and 1960s, the Iowa Republican Party Central Committee activities in the 1950s and 1960s, and materials of the Iowa Council of Republican Women from the 1940s to the 1960s. The National party papers are primarily from the 1950s and 1960s but contain some items from the 1940s, 1970s, and early 1980s. Material includes programs, flyers, correspondence, newspaper clippings, and photographs from national conventions; programs, memoirs, meeting reports, and photographs from presidential inaugurations; correspondence, meeting minutes, publications, newsletters, and announcements of the Republican National Committee and its women's organizations and conferences, and publications and photographs from the National Federation of Republican Women.

The Political Campaigns series dates from 1944 to 1968 and contains local, state, and national levels including speeches, newspaper clippings, photographs, flyers, sheet music, and memorabilia from the campaigns. Among the Artifacts are political campaign and Republican party buttons, jewelry, bumper stickers, ribbons, and similar material from 1912 to 1981. In 1956 Lomas kept a scrapbook of material relevant to her political activities from the state convention through the campaign and election and including the 1957 inaugurations of the governor and president. The material was never pasted into the scrapbook and has been sorted and arranged within the relevant series in this subgroup.

The William Cochrane subgroup contains papers relating to Cochrane's service on the draft exemption board from 1917 to 1919 and extensive correspondence from the 1931 session of the General Assembly on issues such as a proposed state driver's license law, income tax legislation, proposed state constabulary, school funding issues, proposal that dentists might purchase limited amounts of whiskey for their practice, and opposition to mandatory military training at state colleges and universities. Late in her life Lomas privately published a memoir of her father entitled William Cochrane: Biography of a Self-Made Man, a copy is included with his papers.