Correspondence, brochures, newspaper clippings about Ritchie and her acquaintances, curriculum vitae, Columbia University Teachers' College master's diploma (1930), certificates of appreciation, photographs, postcards, yearbooks of the American Association of University Women and the PEO Sisterhood, World War II ration books, list of appointments, 1949-1950, and other items.

Reports, minutes, planning documents, correspondence, scrapbooks, and photographic albums of the Department of Home Economics (now the School of Family and Consumer Sciences). Includes materials on department head Margaret Ritchie, on the Mary Hall Niccolls Scholarship Awards, and relating to auxiliary organizations such as Phi Upsilon Omicron, Student Home Economics Association, Idaho Home Economics Association, and Idaho Extension Homemakers Council.