Hitchcock Chronology: Herman Citron
- Hitchcock, Lew Wasserman, Herman Citron and James Stewart meet at the end of April to discuss who should play the role of Madeleine/Judy in Vertigo. Wasserman favours rising star Kim Novak instead of the pregnant Vera Miles.
- 9th - The first complete rough cut of The Birds is screened to a select group, including Alma Reville, Patricia Hitchcock, Taft Schreiber (MCA executive), Herman Citron, Arthur Park, Jerry Adler (theater director), Vince Dee, Bernard Herrmann, Bill Blowitz (Head of Publicity at Universal), George Thomas, Joan Harrison and Norman Lloyd.
- 16th - Hitchcock sends a memo to his agent Herman Citron asking him to try and secure the rights to both J.M. Barrie's Mary Rose and John Buchan's The Three Hostages.
- 23rd - Agent Herman Citron writes a memo to Hitchcock to confirm that he can purchase the story rights to J.M. Barrie's play Mary Rose from Paramount Pictures.
- Alfred Hitchcock: A Life in Darkness and Light (2003) by Patrick McGilligan, page 546
- The Making of Hitchcock's The Birds (2013) by Tony Lee Moral, pages 168-69
- Hitchcock and the Making of Marnie (2013) by Tony Lee Moral, page 207
- Hitchcock and the Making of Marnie (2013) by Tony Lee Moral, page 208