Frothingham, O. B. Theodore Parker: a Biography. 1874.

Weiss, John. Life and Correspondence of Theodore Parker. 1864. 2 vols.

Ripley, George

Frothingham, O. B. George Ripley. (A.M.L. Ser.) 1882.

Thoreau, Henry David

See [Book List], chap. xiv.

The Dial

The standard work is by G. W. Cooke. An Historical and Biographical Introduction to accompany The Dial as reprinted in Numbers for the Rowfant Club, Cleveland. 1902. 2 vols.

The Dial: a Magazine for Literature, Philosophy, and Religion, Vols. I–IV. 1840–1844. Reprinted by the Rowfant Club of Cleveland, 1900–1903.

Brook Farm