The collection documents the attainment of Galeazzo Ciano's diaries by the United States government and Frances de Chollet's role in the process, mostly in the form of correspondence. The majority of the letters were written to de Chollet by Edda Ciano in de Chollet's capacity as a messenger between Ciano and Allen Dulles, though the collection also consists of correspondence to de Chollet from Dulles and an unidentified correspondent. (A letter from Chicago Daily News correspondent Paul Ghali, who also assisted in obtaining the diaries, postdates the war.) Additionally, the collection contains a small amount of de Chollet's notes documenting her face-to-face meetings with Edda Ciano.

The collection also includes biographical materials in the form of photographs that Frances de Chollet took during her trip to Germany at the end of the war, as well as some portraits of her and her passport. Additionally, the collection contains a letter written by de Chollet to her daughter Roseline that describes Roseline's birth in Paris in 1940 and their family's subsequent escape from the city.