The Whanganui Collegiate School Museum is run by the WCS Museum Trust, which looks after the history and memorabilia of Whanganui Collegiate School. Its address is 128 to 132 Liverpool Street in College Estate, Whanganui. The website says the collection holds thousands of photographs, plans, documents, minute books, memorabilia, trophies, uniforms, drama and music production records, sporting records, Old Boys' war records and newspaper clippings. Many photographs and records are linked to former pupils. The full run of the Collegian school magazine, from its first edition in April 1883, is in the collection, and a digital version allows wide access and searching. People with an item of interest can contact the trust to discuss a donation or a loan.