The papers consist of autographs and collected letters, sermons, teaching materials, research notes and documents, and the typescript of Kenneth Cameron's master's thesis on Othello (1931). A large part of the papers relates to the Church of the Holy Trinity in Hartford, Connecticut and contains a substantial collection of the sermons, writings and speeches of the Reverend Ernest Fremery Miel, manuscripts of Sir Arthur Gorges, sermons of Joseph G. H. Barry and papers relating to the construction of the church, 1870-1874. Also in the papers are a number of Civil War documents, including papers of P. P. Pitkin and letters to the U. S. Treasury from officers of the U. S. Colored Regiments. Another group of letters, written between 1885 and 1917, to Samuel Hart, concerns the American Book of Common Prayer. Also included are research materials on the Concord School of Philosophy and Literature.