Thomas Wentworth Higginson and post-Civil War textbooks on American history

In the world of poetry, Thomas Wentworth Higginson (1823-1911) is known as the literary critic that Emily Dickinson sent poems to in 1862; he later co-edited her posthumously published poems with Mabel Loomis Todd. He is also well known as an abolitionist who was colonel of the first black regiment in the Union army during the Civil War. But, as I learned today from Eric Foner's "The New York Review Books" review of Donald Yacovone's "Teaching White Supremacy", he was also the author of an American history textbook which, according to Foner, was one of a number of post-Civil War works that "placed slavery at the center of the American story." (Andrew Shields, #111words, 19 September 2022)