Since then, the school has formed a chequered history, apparently based largely on the aptitude of the headmaster. For example, Thomas Dupré, who took over as headmaster in 1805, refused to teach the students anything but Latin and Greek.
Famous past pupils include the author Graham Greene. The school suffered greatly in World War I, losing 235 pupils. In 1888, Berkhamsted School for Girls was founded and has experienced a less turbulant history since, amalgamating with Berkhamsted School in 1997 to form Berkhamsted Collegiate School.