William Still
William Still, a businessman and an abolitionist, completely loathed the barbaric practice called slavery. He joined the Underground Railroad and helped the Philadelphia chapter. He was able to free over 800 slaves when he was a conductor in the network. In 1872, he released a book named The Underground Railroad: Authentic Narratives and Frist-Hand Accounts.
John Fairfield
Of course, aside from these admirable African-Americans, some white people also helped with the movement. Among them would be John Fairfield, who hailed from a family that enslaved many individuals. John always hated the tradition and joined the Underground Railroad. He became quite famous when he pretended to be an undertaker and liberated 28 slaves by asking them to walk out of an internment.