New Englander William Allen (1830-1889) is mostly known today as the lead editor of the 1867 anthology Slave Songs of the United States, the earliest published collection of Negro spirituals, and as a distinguished history professor at the University of Wisconsin. During the Civil War, he served from late 1863 through mid-1864 as a member of the "Gideonite band" of businessmen, missionaries, and teachers who migrated to the South Carolina Sea Islands as part of the Port Royal Experiment. After the war, he served as assistant superintendent of schools in Charleston from April through July...