This collection consists primarily of Clarence Judson's letters to his family, written during his years at Michigan Agricultural College. The letters describe his classes, activities, and financial situation, his experiences as a teacher during school breaks, the class strike of 1886, and a visit to the Capitol in Lansing. The collection also includes an autobiography, family history materials, genealogical charts, school records, diaries from 1888 to 1902, and a notebook Judson kept while working on the Lake Shore and Michigan Southern Railroad.