"A Group of Philadelphia Abolitionists," circa 1846.

Credit: Library of Congress

In this famous photograph of Philadelphia abolitionists, now an American Treasure in the Library of Congress, Lucretia and James Mott sit at the right hand side of the front row. Sitting next to Mott is Robert Purvis, a founder of the American Abolition Society, president of the Pennsylvania Anti-Slavery Society (1845-50), chairman of the Philadelphia Vigilance Committee (1852-57), and an important leader of the Underground Railroad. The photograph is notable for what at the time was its radical mixing of men, women, and an African American.