At the top of Lawrence Hill, Miss J. Kerr had opened St. Lurach's College circa 1900 - this school also took boarders. Strand House School (1860) closed during the First World War and the girls mostly went to Victoria or St. Lurach's. In 1922 Victoria High School and St. Lurach's amalgamated to form Londonderry High School. By 1928 Duncreggan, formerly the home of the late William Tillie, H.M.L., had been purchased and the boarders were transferred there from St. Lurach's. In the immediate post-war period there was an ever-growing need for increased educational facilities. The high point of an ambitious and forward-looking programme was undoubtedly the opening of the new £150,000 building extensions between Duncreggan House and Dunseverick.