The school was founded in 1906 by Rex Corbett, an ex-England football player, and started with ten pupils in a building that was formerly a brewery.

The main buildings were variously pulled down or sold, leaving the OMH with the grounds, which were levelled for playing fields.

A third joint headmaster Peter Mattinson joined after World War II and the triumvirate ruled until 1974 when the school, then with about 80 boys, was sold to a Trust under the headmastership of Quintin Ambler.

Richard Keeble became Headmaster in January 2004 and left the school in July 2006 handing over the reins to longtime deputy Moira Laffey.

In 2008, the property was acquired and reopened by the Cothill Educational Trust as a science-based centre, running week-long practical science courses for schoolchildren aged 10–13.