"Aside from his efforts helping fugitive slaves, [William] Still was a prominent black leader before and after the Civil War. He was also a businessman and a missionary for black self-help. He assisted Harriet Tubman and kept company with Frederick Douglass. He was an early crusader for civil rights...Vigilance...retrieves an important piece of American history...fulfill[ing] the purpose that Mr. Diemer lays out: to remedy Still's 'erasure' from historical memory."
--Roger Lowenstein, Wall Street Journal

"The fascinating life of William Still is an essential key to understanding the Underground Railroad and the many, many enslaved people who were its engine. Andrew Diemer tells Still's tale through deep research and vivid storytelling, bringing to life a too often overlooked champion of Black freedom. William Still's hard-fought, lifelong commitment to justice timelessly models the best of our American ideals."
--Martha S. Jones, author of Vanguard: How Black Women Broke Barriers, Won the Vote, and Insisted on Equality for All

"With his deep knowledge of the volatile borderlands between the free and slave states, Andrew Diemer has both brought to life an unsung hero of the long civil rights struggle and brought into sharp focus the secret workings of the Underground Railroad. William Still's stirring story is rich with meanings for our own time--dramatizing as it does the elusiveness and fragility of freedom, and the need for tireless vigilance in its defense."
--Elizabeth R. Varon, author of Armies of Deliverance: A New History of the Civil War

"A deeply researched life of a Black Philadelphian who, using his considerable organizational skills, pieced together much of the escape route for enslaved people seeking their freedom....A welcome addition to the literature of abolitionism, spotlighting an important American."
--Kirkus