The Chalmers P. Wylie Papers, dated 1927, circa 1939 to 1990s, with a bulk of the material dating 1967 to 1992, documents the public service career of Wylie as a member of the United States House of Representatives for the 15th Congressional District for 26 years, January 1967- January 1993. While some files date from when Wylie was the Assistant Attorney General of Ohio, City Attorney of Columbus and a member of the Ohio House of Representatives, the majority of the collection documents Wylie's tenure in the United States House of Representatives and the records compiled by his office. The collection contains correspondence, bills, photographs, statements, reports, clippings, press releases, campaign files, speeches, negatives, audiocassette recordings, magnetic audiotapes, 35mm slides, 16mm film, VHS videocassette recordings and U-matic videocassette recordings. These materials highlight Wylie's various roles and responsibilities during his career, ranging from his legislative duties, House committees positions he held, his role in the Republican Party, and his interactions with the media and his district, including election campaigns.

The Donald E. Lukens Papers, dated 1954-1991 with a bulk of the material dating 1966-1974, contains correspondence, scrapbooks, case files, reports, photographs, awards, bills, political cartoons, requests, pamphlets, and questionnaires regarding Lukens' political career, and to a lesser extent, his personal life. Materials in the collection reflect the multiple roles that Lukens functioned under as a member of the United States House of Representatives and the Ohio Senate. Some materials, such as the bills and subject files, reflect Lukens' role as a legislator as he reviewed political issues and voted on bills. Other materials, such as correspondence, case files and requests from constituents highlight Lukens' role as a public servant. Lukens also engaged in other political activities such as running for office, being a member of the Republican Party and giving speeches at events within his district.

The majority of the collection focuses on Lukens' first term as United States Representative from 1966-1970, and on his time as an Ohio Senator from 1971-1986, with the latter materials focusing mainly on 1973-1974. There are a few scrapbooks that contain news clippings regarding the events that caused Lukens to resign from office, and other files that are about Lukens' 1987-1990 term as a congressman in the United States House of Representatives.

The Patrick Tiberi Papers consist of materials from Tiberi’s political career in the United States House of Representatives (2001-2018), as well as from his time in the Ohio House of Representatives (1993-2000), and limited personal correspondence. Materials primarily date to his time in Congress, and include information used by his staff to run his district and federal offices, including yearly Member’s Representational Allowance information, staff handbooks, schedules, and policies. Also included in the collection are materials related to the legislative work done by Tiberi in Congress, such as a selection of correspondence, Dear Colleague letters received, subject files, financial disclosures, and materials related to bills sponsored or cosponsored by Tiberi. His constituent services while in Congress are shown local case files, as well as associated planning materials and correspondence, local subject files, and comment cards and planning information for his district office hours. Also included are audiovisual materials on VHS videocassette, DVD, and compact disc that show Tiberi’s media appearances on the local news and other public appearances. The collection contains ephemera from Tiberi’s political campaigns for the United States House of Representatives, as well as a selection of awards and memorabilia awarded to Tiberi throughout his whole political career. Also included are clippings files for the entirety of Tiberi’s time in federal office. Folder and item titles were taken from descriptions written on original folders used by Tiberi's staff, or text of the items themselves. The collection is dated 1993-2018, with the bulk of material dating 2000-2017.

The William M. McCulloch Papers, dated circa 1905-2010, with the bulk of the material dating 1947-1972, document the public service career of McCulloch (R-Piqua) as a member of the United States House of Representatives for the 4th Ohio Congressional District for 26 years, from November 1947 to January 1973. Although a few items date from McCulloch’s terms in the Ohio General Assembly or from his personal life, including his childhood, and his military service in World War II, the vast majority of the collection consists of the records compiled by the Washington, D.C. office of Congressman McCulloch. The collection contains correspondence, invitations, clippings, campaign files, bills, reports, press releases, issue mail (letters from his constituents regarding certain policies or legislation), memoranda, photographs, certificates and artifacts. There are also a few materials from after McCulloch's death in 1980 that commemorate his legacy.