He also meticulously collected the letters, biographical sketches, arrival memos, and ransom notes of the escapees. The Underground Railroad Records is an archive of primary documents that trace the narrative arc of the greatest, most successful campaign of civil disobedience in American history.This edition highlights the remarkable creativity, resilience, and determination demonstrated by those trying to subvert bondage. It is a timeless testament to the power we all have to challenge systems that oppress us.