People similar to or like Thomas Wentworth Higginson

American transcendentalist and reforming minister of the Unitarian church. A reformer and abolitionist, his words and popular quotations would later inspire speeches by Abraham Lincoln and Martin Luther King Jr. Wikipedia

American industrialist and merchant in Medford, Massachusetts, as well as an abolitionist and a noted recruiter of black soldiers for the Union Army during the American Civil War. Born in Medford, Massachusetts on January 8, 1809, the eldest son and second child of Luther and Mary Stearns. Wikipedia

Nineteenth-century American physician, abolitionist, and an advocate of education for the blind. The first director of the Perkins Institution. Wikipedia

American journalist, author, reformer, and abolitionist. Social scientist, and a memorialist of American transcendentalism who wrote early biographies of many of the movement's key figures. Wikipedia

American author, historian, and Unitarian minister, best known for his writings such as "The Man Without a Country", published in Atlantic Monthly, in support of the Union during the Civil War. The grand-nephew of Nathan Hale, the American spy during the Revolutionary War. Wikipedia

Leading American social reformer, abolitionist, politician, and philanthropist. Candidate for President of the United States in 1848, 1856, and 1860, but only served 18 months in the federal government—in Congress as a Free Soil Party Representative, in 1853–4. Wikipedia