Headmasters
(since the founding of the Watford Endowed School in 1884)
- 1884–1914 William Robert Carter
- 1914–1922 Harold Nicholson
- 1922–1938 Edward Reynolds
- 1938–1951 Percy Bolton
- 1951–1962 Harry Rée
- 1963–1991 Keith Turner
- 1991–1993 Robert Evans
- 1993–1994 Neil Hart
- 1994–2000 Professor Sir John Holman
- 2000–present Martin Post
Read more about this topic: Watford Grammar School For Boys