The papers consist of letters written by Alfred I. du Pont to his grandsons, Bayard and Benno Hiebler, from 1927 until their grandfather’s death in 1935. Most of the letters were written to Benno and contain a wealth of information about du Pont’s interests. Du Pont vividly described his automobiles, yachting and boating, family news, his dogs, travel, and his estates. He gave advice about women and opinions on politics and world affairs. Letters written by Jessie Ball du Pont to Benno Hiebler and his family from 1951 through 1962 contain family news and acknowledgement of Christmas gifts.

Papers pertaining to the settlement of Alfred I. du Pont’s estate were collected by Madeleine Ruoff and include trust agreements and transcripts of du Pont’s will. The collection also includes a certified copy of Madeleines Ruoff’s birth certificate, A. I. du Pont and Bessie Gardner's marriage record certificate for Philadelphia's St. James Church register of marriages, and published materials pertaining to du Pont and Hiebler family history. Lastly, a scrapbook containing newspaper clippings from the 1920s and 1930s documents A. I. du Pont's life accomplishments, philanthropy, business and financial interests, and death.