The American Peace Society is a pacifist group founded upon the initiative of William Ladd, in New York City, May 8, 1828. It was formed by the merging of many state and local societies, from New York, Maine, New Hampshire, and Massachusetts, of which the oldest, the New York Peace Society, dated from 1815. Ladd was an advocate of a "Congress and High Court of Nations." The society organized peace conferences and regularly published a periodical entitled Advocate of Peace.
The Society was only opposed to wars between nation states; it did not oppose the American Civil War,
regarding the Union's war as a "police action" against the "criminals" of
the Confederacy. Its most famous leader was Benjamin Franklin Trueblood (1847–1916), a Quaker who in his book The Federation of the World (1899) called for the establishment of an international state to bring about lasting peace in the world. In 1834 the headquarters of the society were removed to Hartford, in 1834 to Boston, Massachusetts, in 1911 to Washington, D.C. The group is now based in Washington. Its official journal is World Affairs.
Oxford Dictionary of the U.S. Military. Oxford University Press, 2001
Dictionary of American History by James Truslow Adams, New York: Charles Scribner's Sons, 1940
Issued by the society
Advocate of Peace. Published in Hartford: v.1-2 (1834–1836). Published in Boston: v.3-4 (1839–1842); v.11 (1854). New series v.7-9 (1876–1878). Published in Washington, DC: v.84 (1922). Also called Advocate of Peace Through Justice
James Libby Tryon. The Rise of the Peace Movement. Yale Law Journal, Vol. 20, No. 5 (Mar., 1911), pp. 358–371
The American Peace Society: A Centennial History by Edson L. Whitney (1928)
John Benedict Buescher (2005). "American Peace Society". In Karsten, Peter (ed.). Encyclopedia of War and American Society. 1 (1st ed.). Thousand Oaks, CA: SAGE Publications. pp. 36–38. ISBN0-7619-3097-3.