Findings:
- Sidney Keyes
- Sidney Altman
- Sidney Crosby
- Henry Sidney, Earl of Romney
- Henry Sidney
- Sidney Godolphin, Earl of Godolphin
- Sidney Godolphin, 1st Earl of Godolphin
- Sidney Low
- Sidney Lanier
- Sidney Lee
- Sidney Blumenthal Affair
- Sidney Gottlieb
- Sidney Howard
- Sidney Mussberger
- Sidney Walters (user)
- Sidney Kirkpatrick (user)
- Sidney Lumet
- Sidney Carton
- Sidney Sheldon
- Jonathan Sidney Phillips
- Philip Sidney
- Sidney Bechet
- Sidney Paget
- sidney (user)
- Upon the Translation of the Psalms by Sir Philip Sidney, and the Countess of Pembroke, his Sister
- Sidney Sussex College, Cambridge
- Sidney Blumenthal
- Sidney W. Souers
- William Sidney Graves
- Sidney Poitier
- Sidney Gottlieb, the real-life "Q"
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