| John Steck Abolitionist Passmore Williamson photographed in his prison cell in Moyamensing Prison in Philadelphia, Pennsylvania, 1855 Daguerreotype Internet - Original source ill-defined The Chubachus Library of Photographic History, The Chubachus Library of Photographic History. Source requested. LL/105108 He was imprisoned for 100 days for giving evasive testimony about the role he played in helping to free three African American slaves owned by United States Minister to Nicaragua John H. Wheeler.
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