This collection documents the history of the Sigma Xi honorary society at Kansas State University and includes the following records: check register (1963–1983); secretary records that contain member lists, committee records, meeting minutes, correspondence, and election data (1923-1924 to 1964-1965, 1967-1968 to 1980-1981, and 1986-1987); membership lists (paper: 1936-1937 to 1984-1985, 1996-1997 to 1997-1998, and 2004-2005; digital: 1992-1993 to 1996-1997, 2000-2001, and 2004-2005); annual reports (1998, 2005); chapter information; historical data; and some correspondence with the national organization. Additional digital content includes award recipients, membership lists, committee minutes, executive minutes, banquet programs, and calendars (1992-1993 to 1996-1997, 2000-2001, and 2004-2005).

These records document the Alpha Rho chapter of Epsilon Sigma Phi, national extension honor society, at Kansas State University from 1930 to 2016. Types of material include programs, constitutions, newsletters, chapter history, minutes, financial information, membership listings, autobiographies, scrapbooks, and photographic materials. Some records from the 1990s are in digital format.