Prominent types of materials in the collection include correspondence, reprints of Hufford's articles, his research notes, and photographic material pertaining to his academic work. The bulk of the collection dates from 1915-1945. The Correspondence series contains letters regarding: faculty and business at Indiana University; teaching positions at the University of Michigan, Northwestern University, Swarthmore College; Hufford's research; as well as personal and family matters. The series is arranged alphabetically. The series on Hufford's research contains his notes, abstracts on other articles, reprints, and reports. A majority of the materials date from 1914-1935. The research series is in alphabetical order. The publication series contains the published works of Mason Hufford, manuscript materials, articles abstracted by Hufford, and articles collected by Hufford. This series is arranged chronologically and contains materials from 1914-1946. The Student Memorabilia series contains memorabilia from Hufford's personal life. The bulk of the material is from Hufford's student years at Indiana Central Normal College and at Indiana University. His autograph book contains autographs from some of his fellow students at Indiana Central Normal College. It is arranged chronologically. The Notebooks series contains the material Hufford recorded as a student at Central Indiana Normal College and also research/experiment notebooks Hufford kept during his professional career. This series ranges from 1899-1952. The Lantern Slides, Glass Plate Negatives and Lithograph Plates series contains images related to Hufford's research. .