Below is a list of the Isleworth & Syon Headmasters.
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| H.M. Richards (1897-1901) | W G Lipscomb (1901-1903) | W T Kenwood (1903-1931) |
|---|---|---|
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| W B Thurston (1931-1946) | A Brierley (1946-1959) | G J P Courtney (1959-1976) |
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| R K Hands (1977-1979) | J Merrigan (1979-1983) | A C Phillips (1984-1995) |
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| R T Weeks (1996-2000) | F E Ferguson (2000-present) | |