Both Jones and his wife were killed in an accident on their honeymoon in Switzerland, while climbing the Aiguille Rouge de Peuterey 2941m a subpeak of Aiguille Noire de Peuterey on 15 August 1912; their guide, Julius Truffer, slipped and fell on Jones, and all three dropped nearly 1,000 feet to the Fresnay Glacier. Alpinist Paul Preuss witnessed the accident. They were buried at Courmayeur. The north summit of the Aiguille Blanche de Peuterey was named La Pointe Jones in his honour.