From the beginning, Mozley was a strong supporter of the Tractarian movement. After contributing for some time to the British Critic, its periodical, Mozley succeeded Newman as editor in July 1841.[1]
In 1843 he was on the point of joining the Roman Catholic Church. Newman, however, strongly advised him to take two years to reflect, and Mozley decided to remain an Anglican. In 1844 he began to write leading articles for The Times, and continued to do so regularly for many years.[1] Newman's own conversion to Catholicism in 1845 broke the connection between Mozley and Newman, who stopped their correspondence.
In 1847 Mozley resigned from his country living and settled in London.[1]
Mozley was the author of Reminiscences, Chiefly of Oriel, and the Oxford Movement, published in 1882,[1] which details a history of the Oxford Movement and Mozley's own connection to it. Critical reception of the work has been mixed.
Henry VII, Prince Arthur, and Cardinal Morton, from a Group representing the Adoration of the Three Kings on the Chancel Screen of Plymtree Church, 1878.
Reminiscences, chiefly of Towns, Villages, and Schools, 2 vols., 1885.
The Word, 1889.
The Son, 1891.
Letters from Rome on the Occasion of the Œcumenical Council, 1869-1870, 2 vols., 1891.
The Creed, or a Philosophy, 1893, with a short autobiographical preface.
Mozley also published a Letter to the Rev. Canon Bull, 1882, and contributed to the British Critic, and other periodicals, besides The Times.