Amy Kirby Post (1802–1889) was not a freethinker (a disbeliever in religion). But she was surely a free thinker, unafraid to follow her reason and her moral sense wherever they might lead her. She and her husband, Isaac Post (1798-1872), were Hicksite Quakers. The Hicksites had split from “orthodox” Quaker congregations in 1826 over issues ranging from doctrine to slavery; soon the sect became a great epicenter of abolition activism. In time Amy and Isaac would be judged too radical to remain even among the Hicksites for their fervent advocacy of abolition, woman's suffrage (nineteenth-century practice was to use the singular, woman's; later practice was to use the plural, women's), and other reform causes.
In 1842, the Posts were among the cofounders of the Western New York Anti-Slavery Society, which counted Quakers and non-Quakers among its members. This was considered radical by most Quakers, who tended to view any involvements with non-Quakers as "worldly." The Posts opened their home at 36 Sophia Street (now Plymouth Avenue North) in Rochester to radical abolitionist meetings; Frederick Douglass, William Lloyd Garrison, and Sojourner Truth spoke there, as did Susan B. Anthony, who was both an abolitionist and a principal leader of the woman’s rights movement. The Posts’ home also became an important station on the Underground Railroad.
In 1844, Amy and Isaac Post were listed as nonresident members of the Sodus Bay Phalanx, which was led by the Hicksite Quaker Benjamin Fish. It is not known how deeply the Posts were involved with the Fourierist Utopian commune on Sodus Bay; they never became Phalanx residents. Like most such intentional communities, the Sodus Bay Phalanx collapsed in about two years, in part a casualty of disagreements between its liberal-religious and its freethinking members over issues ranging from food choices to whether to allow field work on the Sabbath.
In 1847, Amy Post played an instrumental role in persuading Frederick Douglass to come to Rochester, where he published antislavery periodicals, including the famous North Star, and spent what he would later call the most productive quarter-century of his life.
In 1848 the Posts were driven out of the Genesee Yearly Meeting of Hicksite Friends on grounds that they were too radical and too involved in "worldly" campaigning. They immediately helped to form the Yearly Meeting of Congregational Friends, an ultra-radical Quaker denomination devoted to the immediate abolition of slavery, complete sexual and racial equality, and egalitarianism (the group had no elders, vesting equal authority in every member).
The Posts were early converts to Spiritualism. Again in that eventful year of 1848, the Posts welcomed into their home Kate and Margaret Fox, whose pretended communication with spirits by means of rapping noises launched the Spiritualist phenomenon. The Fox sisters made several converts among the Post’s radical friends, including Isaac himself, who became a medium and in 1852 wrote a classic Spiritualist text, Voices from the Spirit World.
Yet Amy Post maintained a continuing involvement in the freethought movement. This was not as unusual as it sounds; in the later nineteenth century there was substantial cross-fertilization between freethought, radical Quakerism, and Spiritualism. All three shared a stance of opposition to the powerful Christian consensus of the day; all three contributed more than their share of supporters to the abolition and woman’s rights causes.
Like Peterboro-based abolitionist/philanthropist Gerrit Smith, Amy Post never embraced irreligion. Yet both Post and Smith embody the commitment to radical reform and eclectic enthusiasm for human-rights causes that define the Freethought Trail.