The collection is divided into 4 series. The items in each series are arranged alphabetically.
- Series 1. Manuscripts Presented to the Harris Collection, October 1962
- Series 2. Wagner Literary Magazine - Manuscripts and Correspondence Relating to the Spring 1959 Issue
- Series 3. Additional Manuscripts (Group 1) presented November 1969
- Series 4. Additional Manuscripts (Group 2) presented September 1975