The individual who worked tirelessly to abolish slavery in America as part of the Underground Railroad was Harriet Tubman. Born into slavery, Tubman escaped and became a prominent abolitionist, leading numerous rescue missions to liberate enslaved people. She utilized the Underground Railroad's network of secret routes and safe houses, becoming an iconic figure in the fight for freedom. Tubman's bravery and strategic acumen helped hundreds of slaves escape to freedom in the North. Her legacy as a leader in the abolitionist movement continues to inspire justice and equality efforts today.