Thomas Wentworth Higginson, a Unitarian minister, was a fervent member of new England's abolitionist movement, an active participant in the Underground Railroad, and part of a group that supplied material aid to John Brown before his ill-fated raid on Harpers Ferry. When the Civil War broke out, Higginson was commissioned as a colonel of the black troops training in the Sea Islands off the coast of the Carolinas. Shaped by American...