When received, the Jane Sinner Papers consisted of nine boxes with documents and materials related to or created by Jane Sinner during her eight years as North Dakota's First Lady. Folders containing correspondence were, for the most part, arranged chronologically. The bulk of the collection consisted of folders that were organized by subject. Subject headings were primarily arranged in alphabetical order. One box was filled with appointment books and a guest book.
When processed, the Jane Sinner Papers were arranged into three series - Correspondence, Subjects, and Appointment and Guest Books. Audio/visual materials and photographs were separated.