In it, Walker reveals that, unlike some other divers, he had never worked on any treasure dives. Other aspects of his work: Part of the interview article: "In cold water diving he [William] explained what a man has to contend with is the pressure". At Gibraltar he says: "Two of my men died through pressure of water". In response to questions about his work on Winchester, William says "It was not difficult. It was straightforward work, but had to be carefully done". He went on to say that Mr. Jackson had told him that he was very pleased with the work and that he had done what no other man had done—that he had laid the foundation of a whole cathedral. Walker said "I am proud of the honour". A commemoration service was held at Winchester Cathedral, 100 years after he died. Walker married twice. His first wife died before he began work at Winchester. He married his second wife, sister of his first, in 1907, and had several children during his years working at Winchester. Walker died during the Spanish flu epidemic of 1918 and is buried in Beckenham Crematorium and Cemetery, London. His grave, bears the words: "The diver who with his own hands saved Winchester Cathedral." A small statue of Walker is displayed in the Cathedral, near the shrine of St Swithun and the remains of King Canute. Until May 2001 the statue was one mistakenly modelled on the project's consultant engineer, Francis Fox. There is also a bust of Walker in the Cathedral gardens. A public house in Winchester is also named after him. A service of remembrance for Walker, was held at the Cathedral in October 2018. An exhibition about Walker ran until 31 October.