In 1841, he went to
London and worked as an apprentice at Hitchcock & Rogers, a
draper's shop, and became a member of the
King's Weigh House Congregational Church, using his time for evangelisation. After three years, in 1844, Williams was promoted to department manager. He married the owner George Hitchcock's daughter, Helen Jane Maunder Hitchcock in 1853, and was taken into partnership at the drapers, renaming to George Hitchcock, Williams & Co. When Hitchcock died in 1863, Williams became the sole owner of the firm. Hitchcock and Williams had seven children; his son Albert, a solicitor, would go on to marry the granddaughter of
Thomas Cook. Williams's nephew John Williams married the only child of his lifelong London friend, Matthew Hodder, founder of British publisher
Hodder & Stoughton. on 14 November 1905, with 2,600 people in attendance and is commemorated with a bust atop his family vault at
Highgate Cemetery (west). == Founding of YMCA ==