Sydney Carter's birth name is Sydney Bertram Carter.
Sydney Fairbrother's birth name is Sydney Tapping.
Sydney Chaplin's birth name is Sydney Earl Chaplin.
Robin Sydney's birth name is Robin Sydney Heymsfield.
Sydney Wolofsky's birth name is Sydney Lynn Wolofsky.
Sydney Wong's birth name is Sydney Devonne Wong.
Sydney Pollack's birth name is Sydney Irwin Pollack.
Sydney Penny's birth name is Sydney Margaret Penny.
Sydney Newman's birth name is Sydney Cecil Newman.
Sydney Gulizio's birth name is Sydney Jordan Gulizio.
Sydney Greenstreet's birth name is Greenstreet, Sydney Hughes.
Sydney Barrows's birth name is Biddle Barrows, Sydney.
Sydney Ayres's birth name is Daniel Sydney Ayres.