His two sons, Spedan and Oswald, joined the business and, in 1905, he purchased the ailing Peter Jones, which he handed over to Spedan in 1914. In 1928, at the age of 92, John Lewis died and, as Oswald had withdrawn from the business in 1926, the management of both shops devolved entirely to Spedan Lewis.
Spedan Lewis was a profound thinker and a man driven by conscience. He believed that the profits from a business should be shared with the workers who had produced them. It was by implementing this belief, together with other ways of involving the workforce, that he had succeeded in turning round Peter Jones.