Letter to William du Pont from a representative of the Devon Horse Show confirming the reservation of a box at the show for du Pont and also requests that du Pont consider being a judge at the event.
Mass-mailing to all the members of the Delaware Horse Show Association, which includes William du Pont, announcing the date and time of their next meeting.
Lobbying brochure published by the Horse Racing Amendment Association of New Jersey urging support for a law for making Pari-Mutuel wagering on horse races legal in New Jersey.
Form letter from the Association of American Horse Shows to William du Pont (who was a director on the board), laying out rules for horse shows to be read and approved by the board of directors.
Official Program for the Montpelier Horse Show held on October 26, 1929. William du Pont, Jr.'s sister, Marion du Pont Sommerville, resided at the Montpelier estate.
Newspaper clipping offering an anecdote about Marion du Pont and a former employee along with a description of the Montpelier Horse Show on the grounds of William du Pont's Montpelier Estate.
Typed on back: "150th ANNIVERSARY July 1952. E. I. du Pont with daughter Eleuthera. Hobby horse built for founder's son Henry by Brandywine Powdermen."
Brochure and order form for a horse training book by Everard R. Calthrop entitled "The Horse as Comrade and Friend." With an introductory letter by Lord Lonsdale.