The Mary Wentworth McConaughy Papers date from 1894-1988 and contain correspondence, journals, writings, memorabilia, biographical information, family papers, and photographs. McConaughy's correspondence is between her students, family, friends, and colleagues and includes information on her travels in Europe, course evaluations from students, family news, and information about her career, different teaching positions, and her position as head of the Education Department at Mount Holyoke College. One series consists of travel journals, 1927 and 1930, and daily records of the weather and McConaughy's activities, 1955-1984. The countries that she visited include: England, Czechoslovakia, Austria, Switzerland, France, Germany and Italy. Her travel journals include descriptions of sightseeing, tours of community houses, commentaries on food and accommodations, churches she visited as well as concerts and orchestras she attended. Included as well is her observations on the differences she saw between the United States and the other countries in which she traveled. The writings contain various articles on educational testing written by McConaughy, and her book "Individual Differences in the Intelligence of School Children", as well as, speeches, lecture notes, and poetry. McConaughy's memorabilia contains address books, a handwriting analysis, her marriage certificate, and her Harvard diploma. The biographical information includes, resumes, newspaper articles, and obituaries. The family papers include obituaries, wedding invitations, and newspaper articles written about relatives. Also included in the collection are photographs of McConaughy and her family and friends, as well as a number of pictures of her hometown, Isle au Haut, Maine, and photographs of her travels in Europe.

This collection is organized into seven series:

• Correspondence
• Journals
• Writings
• Memorabilia
• Biographical Information
• Family Papers
• Photographs