Elizur Wright (12 February 1804–22 November 1885) was an American mathematician and abolitionist. He is sometimes described as the "father of life insurance" for his pioneering work on actuarial tables. He is also sometimes called the "father of insurance regulation", as he campaigned that life insurance companies must keep reserves, and served as Massachusetts Insurance Commissioner.
Early life 
Wright was born in South Canaan, Connecticut, as part of a devout Christian family who held anti-slavery beliefs and instilled in him a strict moral character. His father, also named Elizur (1762-1845), graduated at Yale in 1781, and was known for his mathematical learning and devotion to the Presbyterian faith. In 1810 the family moved to Tallmadge, Ohio, and the younger Elizur worked on the farm and attended an academy that was conducted by his father. His home was often the refuge for fugitive slaves.
In 1826, the younger Wright graduated from Yale and began to teach: first for two years in Groton, Massachusetts, then at Hudson, Ohio, as a mathematics and natural philosophy professor at Western Reserve College (1829-1833). It was during this time that Wright first encountered the writings of William Lloyd Garrison. Garrison's pamphlet, "Thoughts on African Colonization," persuaded Wright to believe that slavery should immediately be abolished, and that the American Colonization Society's effort to deport free blacks to an African colony was immoral and ineffective.
Along with Lewis Tappan, Arthur Tappan, Theodore Weld, James Birney, and other like-minded individuals, Wright founded the American Anti-Slavery Society at a convention in Philadelphia in December 1833, the year Wright had moved to New York City. Wright became the national secretary of the organization for five years. At this time, the American Anti-Slavery Society espoused the immediate abolition of slavery, called for an end to all racial prejudice and equality for all. To effect this change, members practiced a policy of "moral suasion," an appeal to people's ethics in an attempt to get them to embrace abolitionism and renounce slavery as sinful.
Wright edited a large number of publications, including Human Rights (1834-1835), The Emancipator and the Quarterly Anti-Slavery Magazine (1835-1838). His continued opposition to slavery incurred the enmity of its advocates, and his house was once besieged by a mob, and an attempt was made to kidnap him and convey him to North Carolina. In 1838, he moved to Boston, where he became editor of the Massachusetts Abolitionist in April 1839. In 1846 he established the Chronotype newspaper, which he conducted until it was absorbed by the Commonwealth (1850), of which also he was for a time the editor.
He was also involved in "The Great Postal Campaign" – a project whose job was to distribute abolitionist material across the country. The Anti-Slavery Society was successful in recruiting agents throughout the country to spread their message, but when Garrison and others began to broaden the scope of the Society to include women's rights and took on an anti-religion, anti-government tone, Wright and others objected and began to split from the Society in 1840.
Wright became involved with the newly created Liberty Party and began to separate from the evangelists and the religious anti-slavery movements, believing that government intervention was the way to abolition. Wright was arrested and charged for aiding in the 1851 escape of Shadrach Minkins, the first black man to be seized in New England under the Fugitive Slave Act. He was not convicted. Wright was also indicted and tried for libel in consequence of his severe words for the liquor interests while publishing the Chronotype.
Wright eventually became estranged from the abolitionist movement. Moreover, due partially to disappointment in his church's lack of support for the abolitionist cause, and to a slowly growing desire to find secular solutions to social problems, the formerly pious and devout Congregationalist became an atheist.
Between 1853 and 1858, besides editing the Railroad Times, he gave his attention to invention and mechanics, constructing a spike-making machine, a water faucet, and an improvement in pipe coupling. He patented the last two, and manufactured them for a short time.
According to Frank Preston Stearns, Wright became interested in life insurance as a mathematical study and read "the best works on life insurance ... with the same ardor with which young ladies devour an exciting novel."
In the spring of 1852 an insurance broker "placed an advertising booklet in his hand... Elizur Wright looked it over and perceived quickly enough that no company could undertake to do what this one pretended to and remain solvent. The booklet served him for an editorial," and he embarked on a successful crusade to reform the insurance industry.
He developed actuarial tables and the mathematics for calculating life insurance premiums. He campaigned for valuation laws requiring life insurance companies to hold sufficient reserves to guarantee that benefits would be paid, and nonforfeiture laws requiring the companies to provide cash surrender values. He also served as state commissioner of insurance for Massachusetts, from 1858 to 1866.
He devised a new formula for finding the values of policies of various terms, known as the “accumulation formula,” and, in order to facilitate his work, invented and afterward patented (1869) the “arithmeter,” a mechanical contrivance for multiplication and division, based on the logarithmic principle, a form of cylindrical slide rule.
Public parks 
Wright, a member of the Forestry Association, was instrumental in obtaining the Massachusetts Forestry Act of 1882. He initiated and promoted plans for making Middlesex Fells, an area north of Boston bordering Malden and Melrose, into a public park; although he did not succeed during his lifetime, the plan was carried out later and Middlesex Fells is Middlesex Fells Reservation to this day.
Other activities 
- La Fontaine, Fables (verse translation, 2 vols. 8vo, Boston, 1841; 2nd ed., New York, 1859)
- John Greenleaf Whittier, Ballads, and other Poems (introduction, London, 1844)
- A Curiosity of Law (1866)
- Savings Banks Life Insurance (1872)
- The Politics and Mysteries of Life Insurance (1873)
- Myron Holley, and what he did for Liberty and True Religion (1882)
In addition, he wrote many pamphlets and reports.
- Works by Elizur Wright at Project Gutenberg
- The Fables of La Fontaine, translated by Elizur Wright; Project Gutenberg text.
- Cambridge Sketches by Frank Preston Stearns; has a section on Elizur Wright.
- Actuary Hall of Fame contains a brief account of Wright's life.
- Elizur Wright Business Papers at Baker Library Historical Collections, Harvard Business School.
- Elizur Wright Papers, Manuscript Division, The Library of Congress.
- *Meier, Kenneth J. (1988). The political economy of regulation: the case of insurance. Albany, NY: State University of New York. p. 52. ISBN 0-88706-731-X.
- "Wright, Elizur". The American Cyclopædia. 1879.
- Wilson & Fiske 1889.
- Equal rights in religion: Report of the Centennial Congress of Liberals, and organization of the National Liberal League, at Philadelphia, on the fourth of July, 1876. Boston: National Liberal League, 1876.
- James, Brewer, Holy Warriors: The Abolitionists and American Slavery, retrieved 2008-03-01
- "Wright, Elizur". Encyclopedia Americana. 1920.
- This article incorporates text from a publication now in the public domain: Wilson, James Grant; Fiske, John, eds. (1889). "Wright, Elizur". Appletons' Cyclopædia of American Biography. New York: D. Appleton.