Evan Thomas, The Very Best Men. Four Who Dared: The Early Years of the CIA (New York: Simon and Schuster, 1995), n. p. (e-book).

Frances de Chollet, notes of meetings with Edda Ciano, 1945, Frances de Chollet Collection, MC292, Public Policy Papers, Department of Special Collections, Princeton University Library.

Ray Moseley, Mussolini’s Shadow.

Howard McGaw Smyth, “The Papers: Rose Garden”.

Paige Y. Durgin, “Framed in Death”.

Private manuscript, courtesy Jacqueline de Chollet, 2021.

Edda Ciano letters to Frances de Chollet, Frances de Chollet Collection, MC292, Public Policy Papers, Department of Special Collections, Princeton University Library.

“Drue Heinz, Philanthropist and Paris Review Editor, Dies at 103”, obituary, Seattle Times, April 5, 2018.

Petersen, From Hitler’s Doorstep.

Andrea Niccoletti, “The Decline and Fall of Edda Ciano”, n. p.

Renzo Allegri, “Nel racconto di un sacerdote”.