The collection consists of correspondence, academic and literary material, miscellaneous personal papers, newspaper clippings, photographs, slides, and scrapbooks.

The material has been divided into four series: Collection of literature on arachnids, research and teaching papers (including reprints, typescripts, notes, and correspondence), personal papers, and pictures (mostly photographs of arachnids and birds).

Scrapbook containing clippings, notes, photographs, mainly of Reynolds's friends in Fayetteville, particularly the "Spider and Skillet Club" (a group formed for hiking and cookouts.) Includes booklet on Niloak pottery; postcards of the university, Hot Springs, and St. Louis; souvenir viewbook of the university.