Under thirty years of Hawthorne's guidance, the school attracted some of the most talented art instructors and students in the country including John Noble, Richard Miller, and Max Bohm.
In Peter Jackson's live-action movie trilogy, Denethor was played by John Noble, and was portrayed in a substantially more negative light than the novel.
The mini-series Hills End starred Madge Ryan, John Noble, Maree D'Arcy, Katharine Cullen, Clayton Williamson, Jason Degiorgio, Emma Fowler, Haydon Samuels and Caitlin Procter.
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His pupils there over a number of decades until his death in 1968 included: Edith Coates, Rita Hunter, Arnold Matters, Elsie Morison, Margaret Nisbett, John Noble, Alberto Remedios, Betty Roe, Eric Shilling, Joan Sutherland and David Ward.
Many of Barlow's pupils at the John Noble Barlow school became well-known painters, including Garstin Cox, William Cox, Donald Henry Floyd, Herbert George, Anna A. Hills, and Edgar Nye.