1 9 2 6 . ▁ ▁History ▁The ▁school ▁was ▁established ▁in ▁ 1 9 2 6 ▁by ▁Jess ie ▁Elli ot - P yle ▁in ▁Brown low ▁Road ▁with ▁three ▁pup ils , ▁and ▁was ▁named ▁after ▁Dun not tar ▁Castle ▁in ▁Scotland . ▁She ▁gave ▁it ▁the ▁mot to ▁Do ▁ut ▁Des , ▁which ▁is ▁translated ▁as ▁I ▁give ▁that ▁thou ▁may ' st ▁give . ▁She ▁chose ▁for ▁the ▁school ’ s ▁cr est ▁a ▁pel ican ▁mother ▁n urt uring ▁her ▁young . ▁ ▁In ▁ 1 9 3 3 , ▁the ▁school ▁moved ▁to ▁the ▁High ▁Tre es ▁Est ate ▁in ▁a ▁m ansion ▁called ▁" High ▁Tre es " ▁which ▁had ▁been ▁built ▁by ▁Walter ▁Blan ford ▁Water low , ▁fourth ▁mayor ▁of ▁Re ig ate , ▁in ▁ 1 8 6 7 . ▁In ▁ 1 8 7 4 , ▁Water low ▁rem ar ried ▁his ▁younger ▁brother ' s ▁wid ow , ▁Maria ▁Water low ▁( née ▁Cross ), ▁mother ▁of ▁Sir ▁Ernest ▁Albert ▁Water low . ▁Add itions ▁had ▁been ▁made ▁to ▁the ▁m ansion ▁in ▁about ▁ 1 9 0 8 . ▁In ▁ 1 9 6 1 , ▁it ▁changed ▁from ▁private ▁ownership ▁to ▁being ▁owned ▁by ▁a ▁char itable ▁trust . ▁In ▁ 1 9 7 5 , ▁it ▁joined ▁the ▁Association ▁of ▁G over ning ▁Bod ies ▁of ▁Girls ' ▁Public ▁School s , ▁which ▁is ▁now ▁called ▁the ▁Girls ' ▁School s ▁Association . ▁ ▁In ▁March ▁ 2