<P> In 1855, he participated in the nationally covered rescue of Jane Johnson, a slave who sought help from the Society in gaining freedom while passing through Philadelphia with her master John Hill Wheeler, newly appointed US Minister to Nicaragua . Still and others liberated her and her two sons under Pennsylvania law, which held that slaves brought to the free state voluntarily by a slaveholder could choose freedom . Her master sued him and five other African Americans for assault and kidnapping in a high - profile case in August 1855 . Jane Johnson returned to Philadelphia from New York and testified in court as to her independence in choosing freedom, winning acquittal for Still and four others, and reduced sentences for the last two . </P> <P> In 1859, Still challenged the segregation of the city's public transit system, which had separate seating for whites and blacks . He kept lobbying and, in 1865, the Pennsylvania legislature passed a law to integrate streetcars across the state . </P> <P> Often called "The Father of the Underground Railroad", Still helped as many as 800 slaves escape to freedom . He interviewed each person and kept careful records, including a brief biography and the destination for each, along with any alias adopted . He kept his records carefully hidden but knew the accounts would be critical in aiding the future reunion of family members who became separated under slavery, which he had learned when he aided his own brother Peter, whom he had never met before . </P> <P> Still worked with other Underground Railroad agents operating in the South, including in Virginia ports, nearby Delaware and Maryland, and in many counties in southern Pennsylvania . His network to freedom also included agents in New Jersey, New York, New England and Canada . Conductor Harriet Tubman traveled through his office with fellow passengers on several occasions during the 1850s . Still also forged a connection with the family of John Brown, and sheltered several of Brown's associates fleeing the 1859 raid on Harpers Ferry . </P>

Who was known as the father of the underground railroad
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