In 1851, Booth joined the Reformers (Methodist Reform Church), and on 10 April 1852, his 23rd birthday, he left pawnbroking and became a full-time preacher at their headquarters at Binfield Chapel in Clapham. William styled his preaching after the revivalist American James Caughey, who had made frequent visits to England and preached at the church in Nottingham where Booth was a member, Broad Street Chapel. Just over a month after he started full-time preaching, on 15 May 1852, William Booth became formally engaged to Catherine Mumford.