The school was founded in 1984 through the merger of HevershamGrammar School and Milnthorpe Secondary School. Heversham School was founded and endowed on 24 January 1619/20, by Edward Wilson, Kt, of Nether Levens, who also owned Heversham Hall. It occupied the site known in recent years as Old School, above and behind the village church, on Heversham Head. The building is now a private house. The present ivy-clad Boarding House and Big School date from the 1880s. After occupying many different buildings around the village, Milnthorpe Secondary School moved to its current location, complete with Community Centre, in 1968. Dallam is a boarding school, the boarding house being on a separate site from that of the main school. In 2010, the school brought the PE department down from the Heversham site with an all-weather astroturf pitch. In 2018, Mr Nigel Whittle became the headteacher of the school. In 2019, Ms Julie O'Connor became Executive Headteacher of the school.
Sixth form
Dallam School has a sixth form, which offers both A-levels and the IB. The A levels available:- - Art - Biology - Business Studies - Chemistry - Drama - English - EPQ - Geography - History - ICT - Maths - Media - Outdoor Education - PE - Philosophy - Physics - Psychology - Travel and Tourism The subjects available at IB are as follows: Group 1 Studies in Language English A, German A, Italian A Group 2 Language Acquisition English B, French B, Spanish B, Spanish Ab Initio, Italian Ab Initio Group 3 Individuals and Societies Business and Management, Geography, Philosophy, Psychology, History Group 4 Experimental Sciences Design and Technology, Chemistry, Biology, Physics Group 5 Mathematics and Computer Science Maths including Maths Standard, Maths Studies and Further Maths Group 6 The Arts Art, Music, Theatre Arts It is also possible to take an IBCC, which can include Outdoor Pursuits, Health & Social Care, or Travel & Tourism as the vocational element.
Notable alumni
William Whewell : A crater on the moon – the Whewell – is named after a Heversham old boy, the distinguished polymath. Whewell's influence extends to our everyday language: he coined the words physicist and scientist.
