Discover how Alexander Clark and the work of abolitionists in Iowa played a critical role in the abolitionist movement in this video gallery adapted from Iowa PBS’s documentary Lost in History: Alexander Clark. From helping a fugitive slave to working to sign up black americans to fight in the Civil War, Alexander Clark was a man of courage and conviction at a time in American when he, a free black man, could have been enslaved and persecuted just for speaking out for change.