The collection contains correspondence between Sandberg and Jenkins, articles on Sandburg by Jenkins (typescript, clippings and reprints) and other news clippings and materials on Sandburg. Also included are Jenkins' notes on Thomas Irwin Starr and Philip Green Wright. There is an extensive file of photographs of Sandburg, Jenkins and Starr and a file of letters related to Sandburg from Sandburg's literary contemporaries.

This collection is organized into six series:

• 1. Correspondence
• 2. Prose and Poetry of Carl Sandburg
• 3. Articles on Sandburg by Alan Jenkins
• 4. Miscellaneous Material on Carl Sandburg
• 5. News Clippings
• 6. Miscellaneous Material